levers!!!!

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!!

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

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!!

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

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

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?

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

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!

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

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

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.

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.