Friction-Factors Effecting Friction [CBSE (Central Board of Secondary Education) Class-8 Science]: Questions 1 - 2 of 2
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Question 1
Question MCQ▾
Spring balance is used to measure the value of:
Choices
Choice (4) | Response | |
---|---|---|
a. | Relative motion | |
b. | Force | |
c. | Weight of object | |
d. | Force of friction between the surface and object |
Question 2
Question MCQ▾
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 roughness of two surfaces | |
c. | State of smoothness of two surfaces | |
d. | Both a. and b. are correct |