Simple Machines

This type of simple machine uses a wheel to change the direction of a force.

• wedge
• lever
• pulley
• screw

Tags

NGSS.K-PS2-1

NGSS.K-PS2-2

All simple machines help make work _________.

• harder
• smaller
• lighter
• easier

Tags

NGSS.MS-PS2-2

The unit of measure for work is_____________.

• meters

• joules

• newtons

• millibars

Tags

NGSS.HS-PS3-2

The unit of measure for force is _____________

• meters

• joules

• miles per hour

• newtons

Force is measured with a _________________

• barometer

• hygrometer

• spring scale

• meter stick

True or False. The formula for work is Work = Force x Distance (W= F x D).

• True

• False

Work is done when .....

• a force is exerted on an object.

• an object exerts force onto another object.

• a force is exerted on an object causing the object to move.

• an object does not move.

Tags

NGSS.HS-PS2-1

True or False. When a force is applied to an object and it does not move then work was done.

• True

• False

How much work was done when a force of 12 newtons was applied to an object and the object move 2 meters?

• 14 Joules

• 24 Joules

• 14 Newtons

• 24 Newtons

Tags

NGSS.MS-PS2-2

A boy uses this simple machine to lift a load. How does this machine help the boy to do work?

• by changing the direction

• by reducing total work

• by decreasing distance

• by reducing effort force

Tags

NGSS.MS-ETS1-1