Practice What You Have Learnt - 9.8 | 9. FRICTION | CBSE 8 Science
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What You Have Learnt

9.8 - What You Have Learnt

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Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What does friction do?

💡 Hint: Think about surfaces in contact.

Question 2 Easy

Name one type of friction.

💡 Hint: Recall the examples discussed in class.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does friction always oppose?

Motion
Gravity
Pressure

💡 Hint: Consider what happens when two surfaces interact.

Question 2

True or False: Rolling friction is greater than sliding friction.

True
False

💡 Hint: Think about movement types.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Design a practical experiment to measure static and sliding friction. Describe the setup and expected results.

💡 Hint: Think about forces and angles.

Challenge 2 Hard

Discuss the advantages and disadvantages of using lubricants in machines.

💡 Hint: Consider both short-term and long-term effects.

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Reference links

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