Science of Machines

Simple Machines

2011-03-31T09:51:00.002-06:00

Here is a list of them - Pulley, Wheel and Axle, Wedge, Screw, Incline Plane, and Lever. A complex machine is a machine made up of more than one machine. An example would be a car it is a wheel an axel, and a lever and many more.

MA - Mechanical Advantage

2011-03-31T09:48:00.001-06:00

Mechanical advantage is how much easier a job will be if you used a simple or complex machine when doing work. Output force is what you get out of it, and input force is what you physically put in.

St. Patricks day

2011-03-31T09:45:00.001-06:00

No I don't believe in Leprechauns. Also the more input force the more output force and so on. The shorter wedge takes more force than the longer wedge.

Wedges, lever, and Incline Plane

2011-03-31T09:41:00.002-06:00

I learned that the placement of the fulcrum is vital. It is a lot easier if it is closer to you. It decides whether or not the relationship is Direct or Inverse. Direct is when one goes up the other goes up, and inverse means when one goes up the other goes down. I discovered incline planes are used as ramps, and an incline plane would be easier to use if it was long, and some factors that could effect it would be the weather.

Wheel & Axel

2011-03-31T09:36:00.002-06:00

I learned that a wheel and axel makes work alot becuase i tmakes it easier to lift an object. A screw can also make it much easier to lift objects. The mechanical advantage depends on how big the wheel is and how big the threads are. The wider the thread the more force it takes to lift the object. The high the MA the more effective the machine. So it is more efficient with higher MA.

Wheel and Screw!

2011-03-31T09:31:00.003-06:00

The radius of the wheel and also the diameter of the screw affect how much work is needed to complete the job. When the radius of the wheel is bigger the force needed to lift something is less but when the radius of the wheel is smaller the force needed increases that is very similiar with the screw. The mechanical andvantage is the biggest when the screw and wheel are very big.

KE & GPE

2011-03-31T09:25:00.002-06:00

Gravitational Potentional Energy is taking Joules divided by gravity times height. to find mass. The KE is KE = 1/2mv^2. No I did not get to go. I was going to but after school I usually lift weights till 6, and when I was done I forgot. Sorry.

Energy

2011-03-30T13:36:00.002-06:00

Gravitational Potentional Energy is taking Joules divided by gravity times meters, to find mass. the KE has 2. One is 2KE divided by mass take the square root of the anwser, that is how you find volcity. Most of the affects come from both of them. No I did not get to go. I was going to but then I was in newell till 5ish, had homework and by the time I got my homework done it was time for the chemstry show.

Energy

2011-03-30T08:49:00.002-06:00

I guess it has been couple days since we have blogged so..... Yesterday we took notes over gravitational potential energy and kinetic energy. Please describe GPE and KE. What factors affect potential energy and what factors affect kinetic energy? Did any of you go to the chemistry show last night? What did you think?

;Wheel and Axle!

2011-03-29T13:26:00.002-06:00

On Thursday, we learned how wedges and levers work. The distance of the threads, and how big or small the wheel is, will determine the MA. If the threads are further apart it can lift more and then it would be a higher MA. The best is far-apart threads and a big wheel.

wheel and axel

2011-03-29T13:25:00.002-06:00

the radius of the wheel and the diameter of the screw affect how much work is needed to be done, when the radius of the wheel is increased the force needed to lift the gate is less but when the radius of the wheel is decreased the force needed increases that is the same with the screw. the mechanical andvantage is the best when the screw and wheel is at its largest.

St. Patricks day

2011-03-29T10:10:00.002-06:00

I don't believe in lepricons or the gold at the end of the rainbow, I also dont' think they usesimple machines or wedges. The input force effected the output force because if you use more input force you will have a greater output force, and same with the input distance and output distance. The shorter wedge was harder to use because i takes alot more force becuase it is not as sharp as the longer one. With the lever I noticed that the closer you were to the fulcrum it was easier, and harder if it was farther away.

Wheel and axel

2011-03-28T21:09:00.002-06:00

I have learned that a wheel and axel make work much easier and a screw can also make it much easier to lift objects. The mechanical advantage depends on how big the wheel is and how big the threads are. The wider the thread the more force it takes to lift the object. I also learned the most effective machines have the lease MA.

2011-03-28T19:13:00.002-06:00

i cant believe it because the mouth seems like it had just started no lie it's so crazy!!!!!!!!!!!!!! i have learn that 2 things that effected the wheel and axlewas the wheel radius, and how the length of a the threads. and the greanter the number of the threads the and the greater the wheel the less force it needed to turn it

2011-03-28T13:36:00.002-06:00

Well Ive learned that you can combine the wheel and axle with a screw to make it a lot easier to lift an object. The MA all depends on the size of the wheel and how far apart the threads are on the screw. The farther apart the threads on the screw make the MA greater. If the machine is effective though it will have a very low MA.

The Wheel and Axle!!!!

2011-03-28T13:06:00.007-06:00

In this activity we learned how the wheel and axle helps you lift things that are to heavier for you to lift. The MA factor was higher at some times and lower at sometimes. If the MA was higher then some of the others we would have a very good machine there. The MA is higher the anything else. The rivets on the screw make it more high efficient that you would be able to use it for anything.

2011-03-28T13:06:00.004-06:00

the wheel and axel help to move an object, and the screw increases the distance but decreases the force and the greater the thread dencity the greater the Ma is just like on the wheel and axel the greater the circumfrance the greater the greater the Ma. and when combined the wheel and axel and the screw can make the force sinificanly decrease.

The screw and the Wheel @ Axle!!!

2011-03-28T13:04:00.003-06:00

By doing this experiment online I learned that the wheel and axle makes work easier. When you lift a block vertically you can use a wheel and axle. The two things that I noticed that made a difference in the Mechanical Advantage is the radius of the wheel and the number of threads per meter. When the wheel had a large radius, and the screw had a denser number of threads the mechanical advantage would be higher. If a machine was efficient the Mechanical advantage would be high, if it is efficient, the less work you would have to produce.

2011-03-28T13:00:00.002-06:00

The lab tought me that combineing simple machines greatly increases the MA, and that by useing simple machines properly it can decrease the force aplied to move the object. these labs worked well by getting peoples attention by using animated characters and alowing you to manipluate the difrent parts of the simple machines.

Axel, wheel, and screw

2011-03-28T12:56:00.003-06:00

What I learned from the online activity. Two things that effected the wheel and axel were the radius of the wheel, and how far apart the threads are. The greatest the wheel and thread number is gives you the most Mechanical Advantage with the wheel and axel. I might have gotten the screw mixed up, for a screw to have the greatest MA, it must have the greatest number of threads. Side note: If you want a greater MA you want a machine with the highes number.

Online Activity

2011-03-28T10:42:00.002-06:00

During the activity I learned that combinding all these machines will actually help you will all that you need. When you have a high MA, that means that the screw was at least higher, if you have a lower MA that means the screw was lower.

The screw & the wheel & axle

2011-03-28T10:36:00.000-06:00

In this activity I learned that you can combined the wheel & axle with the screw to make it even easyer to lift an objcet. The size of the Wheel and how far apart the threads are make the MA. The farther apart the threads on the screw make it have a higher MA. If a machine is very effective the MA will be low.

The Screw and the Wheel & Axle

2011-03-28T08:45:00.002-06:00

Wow can you believe March is almost over!!! Any way, today (or maybe last Thursday) we finished up the online activities. The last activity was about the wheel and axle and the screw. So what did you learn? What two things affected the MA of the wheel and axle? Which situation allowed the wheel and axle to have to highest MA? What makes the screw have a high MA? Just as a side note, if a machine is very efficient, with the MA be high or low? Tomorrow we talk about energy!!

levers

2011-03-24T13:31:00.002-06:00

Levers are one of the most important simple machine. They are all around us and we don't realize it. We use levers for almost everything. things like turning on lights, lifting things, and opening cans. There are many types of levers, your arm is considered a lever. Levers are clasified buy their fulcrum placement and where you aply fource.

Levers

2011-03-24T12:53:00.002-06:00

When the fulcrum is close to the object being lifted it requires less force. THe relationship of the input force and out put force was easier when the fulcum force was closest to the object being lifted. The inclined plane was easier to use when it was longer. If the inclined plane is too long it would take forever to get to the top

levers!!!!

2011-03-23T09:34:00.003-06:00

I discovered that the wedge is easier to brake a rock. The lever was the easiest, because just move what you are using to make it work. The relationship is they both work together.

i discovered that they are very helpful. They help you move something very heavy to a spot. The long helps more then the short. The short one would help if you had something light to move. The different lengths would help.

Lever YAY!!

2011-03-23T09:01:00.002-06:00

The fulcrum is the biggest part of the lever, it is the toast with the jam, the straw to the berry, and so on. When the fulcrum is closer to you it is harder to move something and when it is farther away it gets easier and easier. The longer the incline plane is the easier it is to get up and the shorter it is the harder it is. The weather and the height of the ramp are the factors that might affect it.

inclined planes and ramps

2011-03-22T17:07:00.002-06:00

today we have learn about inclined planes and ramps. the are made to make work simpler, for instants like put stuff in or on a trailer you could use a ramp or inclined plain.

Levers, Wedges, and more!!

2011-03-22T13:35:00.003-06:00

The placement of the fulcrum is very important for the mechanical advantage of the lever. Most of the time it seemed to work much better if it was farther away from you. The relationship between the input and output distance was inverse, (or opposite)

Inclined planes are very effecient, if very long. The longer plane was the easiest to work with. Other factors would have to be weight of the object, strength of the person, how high you have to push it, or friction!

Inclined Planes and Ramps

2011-03-22T11:07:00.000-06:00

Today we learned about inclined planes and ramps. They are used so that somebody can slide or roll an object up them to the top. I learned that the longer the ramp or inclined plane the less force you have to use.

Levers and Inclined Planes

2011-03-22T10:58:00.003-06:00

Yesterday you finished up activity one about wedges and levers. What did you discover about the placement of the fulcrum? Was the lever easier to use if the fulcrum was close to you or far away. Was the relationship of input force/distance to output force/distance direct or inverse?

Today we started activity two on the inclined plane and the pulley. What did you discover about inclined planes? What the inclined plane easier to use if it was long or short? What other factors might affect the use of the inclined plane?

2011-03-21T11:09:00.001-06:00

The input distance and output distance, and the input force, and the output force, deal directly with eachother, the Output relies on the input. If the wedge is longer, then there is less force required because of the angle of the point on the wedge. and we learned how to find mechanical advantage

Simple and Complex Machines Lab

2011-03-20T19:47:00.000-06:00

Did labs about simple and complex machines. Learned how each worked and how much force each uses. Some used more force and some used less force.

--Saint Patricks Dayy!

2011-03-20T11:30:00.005-06:00

No, I don't think leprochauns used simple machines to move their gold around, considering neither exist! And if they did exist, they probably didn't use them. The more input force you use, the greater you're output force will be. The more output force you use, the greater your input force would be. The shorter wedge you had, the more force you used. The longer wedge you had, the less force you used.

Happy. St

2011-03-19T14:06:00.002-06:00

I dont believe in lepricons but if they were realy it would be alot easier to move there gold around, especialy since there so small.But i learned that wedges require less input force if the are longer but if they are flatter if requires more input force.

I also learned that levers are easier to use if the fulcrum point is further than you it requires less input force. Yesterday on the math skills worksheet i learned how to figure out mechaninal advantage and learned that it has no label.

St patricks day

2011-03-18T10:35:00.003-06:00

I know that we all think that there's a pot of gold at the end of a Rainbow, But most of the time you never get to the end. If you could, I would definately think that it would be moved by machines. The pully would be an easy one for Lepricauns to use, they can't be seen when they move it. I don't believe in Lepricauns, but it's mostly because I haven't seen one.

The relation ship between input and output force or distance , is that the input force/distance is how much you put into it. The output force/distance is what you get out of the input force/distance. You can't just have one. The differences between the short and long wedges mechanical advantage is that the longer ones have a greater MA, and the short ones have a littler advantage. In short, it takes less effort to use the bigger wedge and more effort to use the smaller wedge.

2011-03-17T19:17:00.002-06:00

no i don't think that there is a pot of gold at the end of the rain i think people just say that so that little kid try to get to the end of the rain bow but then get lost and no one can find them.so i'm pretty sure that they don't use simple mechines. i didn't really tell that there was a much of a relationship with input and output.
i learned the longer and skinier the wedge is the less force it needs. and the small and fatter the wedge is the more force it needs. so to day i have learn that the closer the fulcrum is to you the more force that needs to be exerted and the closer the fulcrum is to the object needs less force exerted on it.

St. Patrick's Day?????

2011-03-17T16:14:00.002-06:00

I don't believe in lepricons or the gold at the end of the rainbow, so they don't us simple machines or wedges. The input force effected the output force because if you use more input force you will have a greater output force, and same with the input distance and output distance. The shorter wedge was harder to use because you needed alot of force to break the big block and the longer wedge you didn't need as much force and was quite easier than the short wedge. With the lever I noticed that the farther away the stone was from the big block it needed alot more force and the closer it was the the big block the easier it was to lift.

2011-03-17T14:58:00.003-06:00

Well i really dont think that theres a pot of gold at the end of the rainbow. So I dont think that lepricons used simple machines either. So yesterday i really did'nt notice much about how input and output where effected.
Today though i noticed the the greater length of the wedge the less force need. The smaller the wedge is in length more foce is needed. With the lever I noticed that the closer the stone is to the object your trying to move the less force needed. However when the stone is further away from the object your trying to lift more force is needed to lift the object. Which makes moving the object pretty hard.

ST.Patrick

2011-03-17T14:41:00.000-06:00

I don't believe in Leprokahns. I learned that Wedges are easier to use if they are longer and not taller, I also learned that Levers are alot easier to use when the Fulcum is closer to you, and not the weight. The mechanical Advantage of the lever is alot higher when the fulcum is closer to you. And a longer wedge has a higher mechanical advantage.

In mechanical advantage I learned that its output distance over input distance, and input force over output force to get mechanical advantage. Mechanical Advantage does not have a label. Mechanical Advantage is how well a tool does its job.

Happy St. Patricks Day!!!!

2011-03-17T14:31:00.005-06:00

I learned that the bigger the wedge the short the force. When the wedge was smaller, the force became bigger. Use the input force to figure out if the force puts where you move the the lever or the wedge to make it sized.

In the output distance and in put distance would be what you out with. Some of the in puts and out puts include, how big the wedge was, how tall was the lever. The output was, the force of input and output.

HAPPY ST. PATRICK'S DAY EVERYBODY!!!!!!

Happy St. Patricks Day!!!

2011-03-17T13:00:00.000-06:00

Ever wonder if lepricauns used simple machines to move their gold around? Anyway today you need to blog about yesterday and today. Yesterday you did math skills on Mechanical Advantage, did you notice anything about the relation ship between the input force and the output force? Or the relation ship between the input distance and the output distance?

Today you started the online lab about the wedge and the lever. What did you discover about the mechanical advantage of a short wedge verses a longer wedge?

Hope all of you had a great St. Patricks day!! Erin go braugh!

Todays blog is worth 10 points, so you need to write TWO paragraphs.

Mechanical advantage

2011-03-17T09:31:00.003-06:00

Mechanical advantage tells how a machine multiplies force or increase distance and it is the ratio between the output force and input force. Input force and distance is the the force you have to put into to object or the distance you have to move it. Output force is the force you get out of the object and the output distance is the distance is moves.
No question, thank you.

2011-03-16T15:18:00.002-06:00

mechanical advantages is how much easier and helpful to you
some are way more helpful and easier than others.
mechanical advantages are input and output distances and also forces that help move something
input forces or distance is all of the work you put into something which will always give you an output force. like pushing a table

2011-03-16T14:58:00.001-06:00

machanical advantage is how much a simple or complexe machine helps you do work. input force is the force that you put into doing the work. output force is how much force is needed toactully move the object.

Mechanical Advantage is Awesome!!

2011-03-16T14:57:00.002-06:00

We did math skills about input force and output force, also mechanical advantage. Input force/distance is the force you put into the object and output force/distance is the force that is affected by the input force. Mechanical Advantage is like pulley's, levers, simple levers, and wheel and axles. A wheel barrel is an example of a simple machine called a wheel and axle.

2011-03-16T13:37:00.002-06:00

Machanical advantage is the use of simple, or complex tools to make work easier. Input force is the amount of work that you, yourself put into doing the work. The output force is the amount of weight you have to lift in order to get the object in the air.

Mechanical Advantage

2011-03-16T13:35:00.002-06:00

Mechanical advantage is the quantity that measures how much a machine multiplies force or distance. The input force is the amount of force that you put on an object. The input distance is the amount of distance that an object has. For example a ramp may measure 3.0 meters, that is the input distance. The more the input distance the less work you have to do. I do not have any questions so far.

Machine Advantage.

2011-03-16T13:34:00.003-06:00

Machine Advantage is the ratio between the output force and the input force. This also equals to the ratio between the input distance and the output distance. The input and output force is used in the Mechanical Advantage. When you do a mathematical problem with force or distance, you figure out what you are doing and multiply or divide.

Mechanical Advantages

2011-03-16T13:33:00.003-06:00

Mechanical Advantages is how much help the machine is to you. Some are much easier to use than others. Mechanical Advantages are found with the input and output forces/distances applied to the load. Input forces/distance is how much work you put into it. All inputs give an output force. Output force is the force that you get out of the object, such as lifting a box.

im awesome

2011-03-16T13:32:00.006-06:00

the ratio between the output force and the input force. the input force is what you put into the object. Kind of like when you lift an object that is the input. The output force is the force is the force that you have to put on the object to lift it.

Mechanical advantage

2011-03-16T13:32:00.005-06:00

Mechanical advantage is just less force that is needed compared to what your are tyring to move lift and so on. The input force is the foce that you have to apply and output force is the force you have to lift.

Mech Advantage

2011-03-16T13:31:00.007-06:00

Mechanical advantage can be defined as the ratio between the output force and the input force. It is also equal to the ratio between the input distance and the ouput distance. The input force is the force that you have to apply. The ouput force is how much weight or the distance you have to lift the object.

-Mechanical;Advantage!

2011-03-16T13:31:00.006-06:00

Mechanical Advantage is the factor by which a mechanism multiplies the force applied to it. The input force is like, how much you put in and the output force would be how high the ramp is. No questions! :)

mechanical advantages

2011-03-16T13:31:00.003-06:00

today we worked on math skills, there are two equations MAf=outf/inf and MAd=ind/outd

Machines

2011-03-16T10:19:00.003-06:00

We are learning about all kinds of machines. Like: Claw hammer, pulleys, and wheel and axle. Those would be Simple Machines. The Inclined Plane Family, Inclined planes, wedges and screw. A complex machine is a machine made of more then one simple machine. A claw hammer and pulley put together. The complex machines could be: A pulley and wheel and axel. A Wheel and Axle and A Claw Hammer. A Claw hammer and a pulley. A Claw hammer and Wheel Axle.

Mechanical Advantage

2011-03-16T08:56:00.002-06:00

Today we worked on math skills on mechanical advantage. There are two equations one for distance and one for forces. Define mechanical advantage. Describe what the input force or distance is and describe what the output force or distance is. Do you have any questions?

simple machines!!!

2011-03-15T17:34:00.003-06:00

We use simple and complex machines every day. Some of the simple machines that we use are: 1. Pulley, 2. Levers, 3. Wheel and axle, 4. Inclined plane, 5. Wheel and axle lever, and 6. Wheel and axle pulley. Some of the simple machines that include these machines types are: Screw, Screw driver, and a Hammer. A complex machines are thing that have more then one different simple machines. A bike, screw and wedge, and a wheelbarrow.

2011-03-15T15:39:00.002-06:00

simple lever
pulley wheel and axle
simple inclined plane
wedge screw
wheel and axle pulley; wheel axle and a pulley

2011-03-15T14:57:00.002-06:00

We use simple and complex machines everyday whether you know it or not. An example of a complex machine would be a bicycle. The pulley,inclined plane, wedge, wheel and axle, lever, and screw are all examples of simple machines. If we did'nt have simple and complex machines alot of work that we do now wouldnt be possible or would'nt get done as fast.

SImple machine3s

2011-03-15T14:39:00.002-06:00

Simple lever
pulley
wheel and axle
simple inclined pane
wedge
screw
complex uses more than one machine
A bicicle uses pulleys

simple and complex machines

2011-03-15T14:37:00.003-06:00

we use the lever, wedge, incline plane, screw, wheel-n-axel, and pulley in everyday life, these six simple machines compose just about everything. they make thinks alot easyer threw machanical advantages. they are used in cars, and just about everything.

Simple and Complex machine

2011-03-15T14:30:00.004-06:00

The simple machines that make up everyday life is the simple lever, pulley, wheel and axle, simple inclined plane, wedge, and a screw. A complex machine consists of more than one simple machine. For example, a bicycle is a complex machine because it consists of more than one simple machine. The simple machines that make up this one complex machine is the wheel and axle, the pulley for the gears.

simple and complex machines

2011-03-15T14:30:00.003-06:00

the bycicle is a complex machine as a pulley is a simple machine. The pulley, inclined plane, wedge, wheel and axle, simple lever, screw are all simple machines. and we use them in our every day life because they are a very helpful thing to us which makes things easier for our day and makes things faster.

machines

2011-03-15T14:06:00.003-06:00

Lever, pulley, wheel and axle, inclined plane, screw, and wedge. Complex machines are machines that are made up of more then one simple machine. An example of a complex machine is a lawnmower is a wheel and axle to turn the blades, an inclined plane on the blade to help cut the grass, and screws to hold it together.

Simple Machines

2011-03-15T13:54:00.000-06:00

I learned about a Pulley, Wheel and Axle, Wedge, Screw, Inclinded Plane, and Lever. A complex machine is a machine made of more than one machine. A bike would be a complex machine, becuase a bike is a pulley, and a wheel and axle.

chapter 12 simple machines

2011-03-15T13:44:00.002-06:00

today we took notes on simple machines and we did this really cool on line thing called pyramid puzzle we had to identify what the effort force was and the little dude did all the work

2011-03-15T13:37:00.006-06:00

pulley, wheel and axle, inclined plane, wheel and axle and pulley, inclined plane with pulley. more than one simple machineput together.

Simple and Compound Machines

2011-03-15T13:37:00.004-06:00

Today we learned about different machine groups. The first group is simple machines. It consists of levers, pulleys, wheel and axel (all 3 are in the lever family), wedge, ramp, and finally, screws (are in the inclined plane family). Many machines we use today consists of more than one simple machines. Such as a sterring wheel. These machines are what we call compound machines. Without simple machines, we wouldn't have anything that we do today.

Machines

2011-03-15T11:18:00.000-06:00

Today we learned the six simple machines. There are two types of simple machines. There is the lever family and the inclined plane family. The lever family consist of: simple levers, pulley, and a wheel and axle. The inclined plane family consist of: simple inclined planes, wedge, and screw. A complex machine is a machine made up of many simple machines. A bike is a complex machine.

Simple Machines

2011-03-15T11:12:00.000-06:00

Today we learned about the six simple macines in everyday life. We did a couple games that taught us how figure out how much force it takes to move the 500 lb blocks. It also showed us how the machines worked.

SIMPLE MACHINES!!!!

2011-03-15T11:04:00.002-06:00

1) Simple Lever

2) Pulley

3) Wheel and Axle

4) Simple Inclined Plane

5) Wedge

6) Screw

A complex machine is a machine with more than one Simple machine

An example is a Bicycle; it has a Lever for the handles, wheel and axle on the front tire, and pulley on the back tire, and a lever for the pedals

machines

2011-03-15T10:58:00.003-06:00

Most people would look at you funny if you told them a cork screw, a ramp, and a crow bar are machines. Machines are sposed to be like table saws, cordless screw drivers, and printing presses. Cork screws and ramps are also machines. They are in a class of machines called simple machines. A machine is any thing that redirecs fource. A loading ramp for example. If you push an object forward on a ramp the ramp will make the object go up.
A complex machine is a machine that uses more than one simple machine like a bicycle. A bike has simple machines like the chain and sproket being a pully system and the peddles are a type of lever.

Simple Machines!!!!!!

2011-03-15T10:09:00.001-06:00

There is wheel and axle, pulley, wedge, screw, simple lever, simple inclined plane. There is a lever family and a inclined plane family. We learned that mehanical energy is the amount of work an object can do because of the oject's kinetic and potential enrgies.

Simple Machines

2011-03-15T09:10:00.003-06:00

Today we took notes on the six simple machines. What are the six simple machines? What is a complex machine? Give an example of a complex machine and list all the simple machines that make up that complex machine. For 2 extra credit points, find a picture of your complex machine.

SCIENCE!!!

2011-03-14T19:31:00.002-06:00

I am weird yes it's true, but do you think that most scientists were perhaps a little weird? I may never be a scientist, but I do love the class.

work

2011-03-09T13:41:00.003-07:00

Work is the transfer of energy from one object to another. For exaple, when a person shoots a bow they pull the string back and release it. The person transfers energy to the spring, the string transfers the energy to the arrow, and the arrow flies throw the air and hits the target and transfers energy to the target.

Work

2011-03-09T13:33:00.003-07:00

Well work is done when a force causes a chnge in the position or the motion of an object. An example of work would be pushing a car by hand. Power, is the rate at which work is done. The more power you have in pushing the car the faster you will get it moving. Mechanical adantages are the ratio between the output for force and the input force. A mechanical adavantage could help you push the car. Ive learned a lot about work and what makes up work.

class time!!!!!!!

2011-03-09T13:32:00.004-07:00

Working on math skills. OH YEAH!!! We are having very interesting conversations.

2011-03-09T13:24:00.003-07:00

we learned about machines n stuff, and that work is when an object is moved and such. simple machines, like wedges, inclined planes, levers, and wheel and axels, and stuff like that. this is an interesting chapter.

Science Blog

2011-03-09T12:55:00.002-07:00

Work, is done when a force causes a change in the position or motion of an object. Example of work would be trying push a wall over by hand. Power, is the rate at which work is done. The more power you have in pushing the wall over the faster it will go down. Mechanical Advantages is the ration between the out put for force and the input force. Mechanical advantages would be the machines you could you to help you push the wall over. I learned a lot about what is actually put into your work and all the thing that you need to have work.

im awesome

2011-03-09T12:52:00.001-07:00

GOOD MORNING CLASSMATES HAPPY WENDSDAY NOTHING LIKE DOING WORK ON A WEDSDAY WHOOOOOOOOOOO!!!!!!!!!!!!!!!!

2011-03-09T10:07:00.002-07:00

Work is the change in position of an object, mechanical advantage, Machines help us by changing the distance over which a force is applied
I learned a couple equations and the exact definition to WORK, POWER, and MECHANICAL ADVANTAGE

2011-03-08T18:02:00.002-07:00

Work is done when a force causes a change in the position or motion of an object
Power is the rate at which work is done
Mechanical advantage is the advantage gained by the use of a mechanism in transmitting force

Nxm=1J=1 kgxm 2/s2
P=W/t
IMA= De/ Dr

Machines

2011-03-08T15:16:00.003-07:00

Today we learned that work is done when a force causes a change in the position or motion of an object. Like when you race some one, if you want to beat them, then you have to do more work in order to pass that finish line. You can't be first without power! Power is the rate at which work is done. The greater the power, the greater your works done. Most work require alot of power, but the use of machines can make it easier. Machines can range from wheelbarrows, to screwdrivers, to pullies. They all make every thing in our lives easier!

Work, power, mechanical advantages

2011-03-08T14:00:00.000-07:00

Today we learned about work, power, and mechanical advantages. Work is done when a force causes a change in the position or motion of an object. Like lifting a water bottle off of the table. Power is the rate at witch work is done. How fast you lifted the water bottle up off the table. Mechanical advantages is when you use machines to help you do work with less force. An example of this is a wedge to split wood.

Work Power and MACHINES

2011-03-08T13:35:00.003-07:00

Work is when a force moves something, and the thing that it moves, is doing work because the energy which could be a person pushing is moving the object. Power is the rate at which work is being done. Mechanical Advantage is when you do something with a tool that makes doing the labor a lot easier. Like using your fingers to screw in a screw. And then it would be a lot easier to use a screwdriver. I expect the chapter to be really interesting involving tools.

Work,Power, and Machines

2011-03-08T13:34:00.001-07:00

I learned that Work is an object moving due to energy. I also learned that Power is a way of calculating Work in progress, like how much work is done in 3 seconds. And Mechanical advantage is when you have a tool make something alot easier. An example of it. would be using a hammer, to pound in a nail instead of your hand. I was only there for half of the period.

ancer

2011-03-08T13:18:00.002-07:00

work power and machanicale advantage the same in the how there used and what they do but power is the the why you use it and how hard it is used. the advantage is we can use it and its esiar for what we use it for. the work power is how much power is used

science

2011-03-08T13:12:00.002-07:00

work is the transfer of energy to a body by the app;ication of force that causes the body to move in the direction of the force, power is a quantity that measures the rate at which work is done of energy is transformed, mechanical advantage is a quantity that measures how much a mechine multiplies force or distance
ex: work, lifting weights, power, pushing some thing, mechanical advantage, carring stuff

what is work, power, and mechanical advantage

2011-03-08T13:11:00.003-07:00

what is work, power, and mechanical advantage. work is the transfer of energy to a body by the application of a force that causes the body to move in the direction of the force. power is a quantity that measures the rate at which work is done or energy is transformed. mechanical advantage is a quantity that measures how much a machine multiplies force or distance. thank you for listening to my blog and good bye.

-Work; Power; && Mechanical Advantage!

2011-03-08T13:10:00.002-07:00

Work is the transfer of energy to a body by the application of a force that causes the body to move in the direction of the force. Power is a quantity that measures the rate at which work is done or energy is transformed. Mechanical advantage is a quantity that measures how much a machine multiplies force or distance. No I didn't learn anything new today because we didn't take notes, so I don't have any questions, either.

work, power, and machanical advantage.

2011-03-08T13:09:00.021-07:00

Worked is done only when force causes a change in the position or the motion of an object in the direction of the applied force. Worked is measured in joules (J). Power is the rate at which work is done, that is, how much work is done in a given amount of time. Power is measured in watts (W). Mechanical Advantage is defined as the ratio between the output force and the input force. Examples 1: Work- Liftying weights or lifting something heavy. Example 2: Power- Electricity and running. Example 3: Mechanical advantage- some machines help you lift or move heavy objects. I learned that Work, Power, and Mechanical Advantage all use force.

BeTTer Than U

2011-03-08T13:09:00.020-07:00

Work is done only when force causes a change in the position or the motion of an object in the direction. Mechanical advantage is defined as the ratio between the output force and the input force.Power is a quantity that measures the rate at which work is done or energy is transformed.
An example of work is a man lifting weights. An example of a mechanical advantage is using a ramp to load a motercyle of a fourwheeler. An example of power is like when you run you go faster.I didnt learn anything knew today.

Work power and chemical advantage

2011-03-08T13:09:00.017-07:00

Work is known as the transfer of energy to a body by the application of a force that causes the body to move in the direction of the force. For example, as a father playing with his daughter by lifting her repeatedly in the air. The father is doing work by exerting a force on the girl. On the other hand power is a quantity that measures the rate at which work is done and energy is transformed. An example of power would be work divided by time, if you ran to your destination, it would take less time than walking does. Time and work influence power. Mechanical advantage is a quantity that measures how much a machine multiplies force or distance. Output force divided by input force influences mechanical advantage. So far I have no questions about the chapters curriculum.

Work, Power, and Mechanical Advantage.

2011-03-08T11:12:00.000-07:00

Work is the transfer of energy to a body by the application of a force that causes the body to move in the direction of the force. Power is the quantity that measures the rate at which work is done or energy is transformed. An example of work would be trying to lift a car without a jack. An example of power is a measure of watts. An example of mechanical advantage is a ramp. I learned more about what each one is. I don't have any questions as of right now.

Chapter 12- work, power, and mechanical advantage!

2011-03-08T11:08:00.000-07:00

Work is done when a force has cause a change in position or motion of an object. Power is the rate at which work is done and mechanical advantage is the ratio between the output forces and the input forces. Examples of work would be texting on your phone, power is the force you put into a work that is being done like how much the tracker speed should go. I have learned new few things for example the difference amount of work we can do, then if we get a tracker amount of how much it is easier to do it.

Work Power and Mechanical Advantage

2011-03-08T10:57:00.002-07:00

I learned that work is the transfer of Energy to a body by the application of a force to the body to move in the direction of the force. Power is the quantity that measures the rate at which work is done or energy is transferred. Mechanical Advanage is how advantagous a machine is when reducing the amount of energy used to perform a task.

Work, power, and mechanical advantages

2011-03-08T09:27:00.002-07:00

Work is done when a force causes a change in the position or motion of an object like when you push a rock. Power is the rate at which work is done like how long it takes to push the rock. Mechanical advantage is the numbers that describes how much the force or distance is multiplied by a machine like a tractor. I learned what the real meaning of work and power was and no i don't have any questions.

Chapter 12 Beginning

2011-03-08T09:16:00.000-07:00

Work is done when a force causes a change in the position or motion of an object. Work is like typing on your computer. Power- is the rate at which work is done. How much force you put on your keys when you type. Machines help us by changing the distance over which a certain force is applied. Like tactors help us feed horses. I knew everything we went over, because we had already taken notes, and no i dont have any questions.