Simple Machines & Energy Test

Which is an example of someone using a simple machine to do work?

• a boy runs across a football field
• a banker counts money
• a mother pushes a stroller up a ramp
• a girl eats a sandwich

Name this simple machine. 

• Pulley
• Wheel and Axle
• Inclined Plane
• Lever

The device used to raise a flag up a flag pole is an example of a 

• wheel and axle 
• lever
• inclined plane 
• pulley 

Using a lever, Joe is able to lift a 10,000 N car off of the ground with a force of 1000 N. What is the mechanical advantage of the lever?

• 1

• 10

• 100

• 1000

A seesaw is an example of a  

• wedge
• lever 
• inclined plane 
• pulley 

A simple machine that can split things apart or hold a door open.

• wedge
• screw
• lever
• hand

If the weight of the block is 10N, how much force does one have to apply to lift it using this pulley (MA=2)?

• 2N
• 5N
• 10N
• 15N

Tamara rides her skateboard 1.5 meters up a ramp to a height of 0.5 meters above ground. What is the ideal mechanical advantage of the ramp?

• 0.5m

• 1.5m

• 3

• 0.33

Stairs are an example of a(n)

• wedge
• pulley
• inclined plane
• wheel and axle

Which is not a type of simple machine?

• spring
• screw
• pulley
• wedge