Simple Machines

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

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

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

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

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!

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

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

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

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!

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

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

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.