Physics Simple Machines Review

Front

There are _____ simple machines

Back

6

Front

Simple machines help us by changing the magnitude or direction of the _____

Back

Force

Front

The _____ is the input force which must be supplied by the user or engine

Back

Effort

Front

The fixed point of rotation on a lever.

Back

Fulcrum

Front

What is mechanical advantage?

Back

The number of times a machine increases input force.

Front

What is the mechanical advantage of the lever (AMA) when a box of weight W is lifted by a force F using a lever?

Back

0.5

Front

A lever and fulcrum are used to lift a fallen tree, which has a weight of 480 N. If the lever has a mechanical advantage of 5.5, what is the input (effort) force that will begin lifting the tree off the ground?

Back

87.3 N

Front

What is the ideal mechanical advantage of the following pulley?

Back

1

Front

What is the ideal mechanical advantage of the following pulley?

Back

2

Front

What is the ideal mechanical advantage of the following pulley?

Back

5