Simple Machines

Front

An example of a lever is a ________.

Back

hammer

Front

A simple machine that splits an object apart is a _______.

Back

wedge

Front

The fixed point around which a lever rotates is known as the _________.

Back

fulcrum.

Front

Which of the following is NOT an example of the simple machine known as a screw?

Back

a crowbar.

Front

Two people shove on a wall with 100 N of force. The wall does not move. How much work have they done?

Back

0J.

Front

What is a simple machine?

Back

A device that makes work easier by allowing us to push or pull over increased distances.

Front

Name the six types of simple machines.

Back

Lever, Wedge, Screw, Inclined Plane, Wheel and Axle, Pulley.

Front

What is the purpose of a wedge?

Back

To separate or cut objects apart.

Front

How does an inclined plane help in lifting objects?

Back

It allows lifting by spreading the effort over a longer distance.

Front

What is the mechanical advantage of a lever?

Back

The ratio of the output force to the input force.