Simple Machines, Work, and Mechanical Advantage

Front

What is a fulcrum?

Back

The fixed point that a lever rotates around.

Front

What are the units for work?

Back

Joules.

Front

What two simple machines make up a shovel?

Back

Wedge and lever.

Front

What type of simple machine is an inclined plane?

Back

A flat surface that is tilted at an angle to help lift objects.

Front

What simple machine is a crowbar?

Back

Lever.

Front

Define mechanical advantage.

Back

The ratio of the output force to the input force in a machine.

Front

What is a wedge?

Back

A simple machine that is used to separate two objects or portions of an object.

Front

What is an example of a wheel and axle?

Back

A doorknob.

Front

What is the purpose of a pulley?

Back

To change the direction of a force and make lifting easier.

Front

What is an inclined plane?

Back

A flat surface that is raised at one end to help lift objects.