Friction-Factors Effecting Friction (CBSE Class-8 Science): Questions 1 - 2 of 2

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Question number: 1

» Friction » Factors Effecting Friction » Spring Balance

MCQ▾

Question

Spring balance is used to measure the value of:

Choices

Choice (4) Response

a.

Weight of object

b.

Force of friction between the surface and object

c.

Relative motion

d.

Force

Question number: 2

» Friction » Factors Effecting Friction » Surface Irregularities

MCQ▾

Question

Force of friction depends upon the:

Choices

Choice (4) Response

a.

Greater the roughness of the two surfaces greater is the force of friction

b.

State of smoothness of two surfaces

c.

State of roughness of two surfaces

d.

Both a. and c. are correct

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