EASY
8th CBSE
IMPORTANT
Earn 100

What is drag? Give two examples of a drag force.
 

Important Questions on Friction

EASY
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 12 - Friction>Long Answer Type Questions>Q 69
How can you reduce the drag on something moving through the air?
EASY
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 12 - Friction>Long Answer Type Questions>Q 70
What is meant by 'streamlined shape'? Name an object which usually has a streamlined shape.
 
MEDIUM
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 12 - Friction>Long Answer Type Questions>Q 70
Explain why, objects moving in fluids should have streamlined shape.
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: