Energy and Simple Machines

Which of the following is not an example of work?

• an ice hockey puck laying on an ice rink
• ship movement that causes ripples in the water
• a man pushing a heavy box across the floor
• a magnet repelling a compass needle

Tags

NGSS.MS-PS3-5

A device in the shape of two inclined planes placed bottom to bottom is called a(n) ...

• incline
• wedge
• wheel and axle
• block and tackle

Which of the following would not be classified as a lever?

• wheelbarrow
• baseball
• crowbar
• tweezers

Name this simple machine.

• Lever
• Wedge
• Pulley
• Inclined Plane

Name this simple machine. 

• Pulley
• Wheel and Axle
• Inclined Plane
• Lever

Name this simple machine. 

• Inclined Plane
• Lever
• Pulley
• Wedge

Which choice is an example of a lever?

• Axe
• Seesaw
• Bottle Cap
• Tunnel

Which choice is an example of a pulley?

• Axe
• Seesaw
• Crane 
• Tunnel

Which choice is an example of an inclined plane?

• A ramp
• Seesaw
• Bottle Cap
• Ferris Wheel 

The fixed point on the lever is called 

• load
• resistance
• bar
• fulcrum