Explain why, objects moving in fluids should have streamlined shape.

Important Questions on Friction

EASY

8th CBSE

IMPORTANT

Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 12 - Friction>Multiple Choice Questions (MCQs)>Q 71

A boy runs his toy car on dry marble floor, wet marble floor, newspaper and towel spread on the floor. The force of friction acting on the car on different surfaces in increasing order will be:

HARD

8th CBSE

IMPORTANT

Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 12 - Friction>Multiple Choice Questions (MCQs)>Q 72

Four children were asked to arrange forces due to rolling, static and sliding frictions in a decreasing order. The correct arrangement is:

EASY

8th CBSE

IMPORTANT

Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 12 - Friction>Multiple Choice Questions (MCQs)>Q 73

A big wooden box is being pushed on the ground from east to west direction. The force of friction due to the ground will act on this box towards _____.

EASY

8th CBSE

IMPORTANT

Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 12 - Friction>Multiple Choice Questions (MCQs)>Q 74

A spring balance can be used to measure:
(A) Mass of an object
(B) Force acting on an object
(C) Density of an object
(D) Weight of an object

EASY

8th CBSE

IMPORTANT

Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 12 - Friction>Multiple Choice Questions (MCQs)>Q 75

The friction between two surfaces does not depend on one of the following. This one is:

EASY

8th CBSE