🔀 Simple Machines: Pulleys and Wheels
Explore how pulleys and wheels work as simple machines to make our lives easier! Learn how pulleys change the direction of force and reduce the effort needed to lift heavy objects, and discover how wheels with axles reduce friction in everyday machines. **What you'll learn:** - Identify pulleys and wheels as simple machines - Explain how pulleys change direction or reduce lifting effort - Recognize wheels and axles in everyday objects - Understand how wheels reduce friction - Describe real-world uses of wheels and pulleys
Questions in this quiz
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- Question 1
What is a pulley?
- Question 2
A pulley can change the direction of the force you apply.
- Question 3
Which of these is a real-world example of a pulley?
- Question 4
What does a wheel and axle do?
- Question 5
Wheels reduce friction by rolling instead of sliding.
- Question 6
Which object uses both a wheel and an axle?
- Question 7
How does a pulley help reduce the effort needed to lift something heavy?
- Question 8
A wheel is a simple machine that helps reduce friction.
- Question 9
What is an axle?
- Question 10
Which of these is NOT a simple machine?
- Question 11
Why are wheels used on shopping carts?
- Question 12
Pulleys are only useful for lifting objects straight up.
- Question 13
What is the main job of a pulley?
- Question 14
Which simple machine is found on a skateboard?
- Question 15
A door handle is an example of a wheel and axle.