Simple Machines and Work

Flagpole contains which simple machine?

• wedge

• pulley

• incline plane

• wheel and axle

Stairs are considered which simple machine?

• wedge

• pulley

• inclined plane

• wheel and axle

Lightbulb has which simple machine?

• wedge

• pulley

• incline plane

• screw

Simple machines change size and direction of 

• Force 
• Simple
• Wheel and Axle

The part of a lever around which it pivots is called the ---

• Inclined Plane

• Elbow

• Fulcrum

------ occurs when a force is applied to an object and the object is moved.

• Energy

• Work

• Force

• Distance

What is the unit used to measure work?

• Joule
• Watt
• Newton
• Pascal

 Work done = Force x _________

• a. distance
• b. acceleration
• c. velocity
• d. speed

A girl pushes a box across the floor. Did she do work?

• no
• yes

What is the work done by the man?

• 0 J
• 65 J
• 6500 J
• 0.0065 J