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Friction - Science Class 8 | Shiksha Nation
Q&A Home
Class 8
CBSE
Science
Friction
🔬
Chapter 9
Friction
Science
•
Class 8
•
CBSE
13 Questions Available
Showing 13 questions on this page
1
Give some examples of smooth and rough surfaces.
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2
What is a spring balance?
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3
Write advantages and disadvantages of friction.
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4
Explain increasing and decreasing friction with suitable examples.
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5
Why are the worn-out tyres discarded?
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6
When the two surfaces are pressed harder, friction increases. Explain why?
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7
What are the various types of friction? Explain.
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8
What is a measure of static friction?
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9
How does the friction depend on the nature of the surface?
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10
What do you mean by fluid friction? How can fluid friction be reduced?
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11
What are the two factors on which the force of friction depends?
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12
If we push the book on the table, it stops after sometime. Why?
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13
Give some examples to show that friction produces heat.
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