Periodical (Simple Machines)

1. What is a simple machine?

• A. A machine with many moving parts
• B. A machine that makes work easier
• C. A machine that uses electricity
• D. A machine that works automatically

Answer explanation

A machine that makes work easier

2. Which of the following is NOT a simple machine?

• A. Lever
• B. Pulley
• C. Computer
• D. Inclined plane

Answer explanation

Computer

3. Which simple machine is used to lift a heavy load by pulling down on a rope?

• A. Lever
• B. Pulley
• C. Wedge
• D. Screw

Answer explanation

Pulley

4. What simple machine is a ramp?

• A. Pulley
• B. Lever
• C. Inclined plane
• D. Wedge

Answer explanation

Inclined plane

5. A seesaw in a playground is an example of what simple machine?

• A. Pulley
• B. Lever
• C. Screw
• D. Wheel and axle

Answer explanation

Lever

6. What simple machine is found on a bicycle wheel?

• A. Lever
• B. Pulley
• C. Wheel and axle
• D. Wedge

Answer explanation

Wheel and axle

7. Which simple machine is a knife?

• A. Lever
• B. Wedge
• C. Screw
• D. Pulley

Answer explanation

Wedge

8. What simple machine helps hold things together, like in a jar lid?

• A. Lever
• B. Screw
• C. Wedge
• D. Inclined plane

Answer explanation

Screw

9. A flagpole uses which simple machine to raise and lower the flag?

• A. Pulley
• B. Lever
• C. Wedge
• D. Inclined plane

Answer explanation

Pulley

10. What simple machine is used in a car to help it move?

• A. Screw
• B. Pulley
• C. Wheel and axle
• D. Wedge

Answer explanation

Wheel and axle