Class 8

Friction question bank (Science)

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Q1.

Arrange static, sliding, and rolling friction in order of decreasing magnitude:


(A)
Rolling > Sliding > Static
(B)
Sliding > Static > Rolling
(C)
Static > Sliding > Rolling
(D)
Static > Rolling > Sliding
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Q2.

In the chapter 'Friction', which scientific principle governs 'Causes of Friction (Interlocking of Irregularities)'?


(A)
Superstition and myth
(B)
Empirical evidence, conservation laws, and repeatable experimental observations in Causes of Friction (Interlocking of Irregularities)
(C)
Aristotelian unverified claims
(D)
Random molecular movement without thermodynamics
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