Simple Machines (levers, inclined planes and wedge)

1. What simple machine is needed in the situation below?

• lever

• inclined plane

• wedge

• screw

2. Which inclined plane requires the least effort?

• 
• 
• 
• 

3. What wedge tool could best do the job?

• axe

• knife

• pickaxe

• saw

4. The man is using a stick to lift the boulder below. Using the concept of a first class lever, where should the fulcrum be place to make it most efficient?

• arrow 1

• arrow 2

• arrow 3

• arrow 4

5. Which of the second class levers below has the correct label?

• 
• 
• 
•