Practice: Simple Machines

Front

What is done whenever a force moves an object a distance?

Back

Work

Front

How can simple machines make work easier?

Back

by decreasing the force needed to complete the task

Front

What is the trade off when simple machines reduce the input force needed to move an object?

Back

The distance the object is moved is increased.

Front

A doorknob is an example of a _______. Options:

wheel and axle

,

inclined plane

,

pulley

,

wedge

Back

wheel and axle

Front

Which type of simple machine is the base of a light bulb? Options: screw, wedge, wheel and axle, pulley

Back

screw

Front

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

Back

fulcrum.

Front

A simple machine that splits an object apart is a _______. Options: inclined plane, fulcrum, wedge, lever.

Back

wedge

Front

A ramp is an example of a(n) _______. Options: inclined plane, fulcrum, force, lever

Back

inclined plane

Front

What kind of simple machine is a hammer when used to remove a nail from a wooden board? Options: Wedge, Lever, Pulley, Inclined Plane.

Back

Lever

Front

A seesaw is what simple machine? Options: lever, inclined plane, pulley, gear

Back

lever