Consider the following diagram which shows a box being pulled by force: Which one of the following actions will decrease the frictional force on the box?

Lubricating the surface between the box and the floor

Increase the contact surface area

Decreasing the speed by which it is pulled

E M B I B E

Science Textbook of Competency Based Questions for Class VIII>Chapter 9 - Friction>Exercise>Q 2

HARD

8th CBSE

IMPORTANT

Earn 100

The picture shows four different rubber tubes.

Which tube will experience the least friction while rolling on a surface? Explain your answer

Important Questions on Friction

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8th CBSE

IMPORTANT

Science Textbook of Competency Based Questions for Class VIII>Chapter 9 - Friction>Exercise>Q 3

Which of these would affect the amount of friction generated on a moving object?

MEDIUM

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IMPORTANT

Science Textbook of Competency Based Questions for Class VIII>Chapter 9 - Friction>Exercise>Q 5

The picture shows four types of shoe soles.

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Which shoe sole provides the best grip and friction while walking?

MEDIUM

8th CBSE

IMPORTANT

Science Textbook of Competency Based Questions for Class VIII>Chapter 9 - Friction>Exercise>Q 6

Why do weightlifters apply chalk powder on their palms while lifting weights?

MEDIUM

8th CBSE

IMPORTANT

Science Textbook of Competency Based Questions for Class VIII>Chapter 9 - Friction>Exercise>Q 7

Consider the following diagram which shows a box being pulled by force:
PBrush

Which one of the following actions will decrease the frictional force on the box?

EASY

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IMPORTANT

Science Textbook of Competency Based Questions for Class VIII>Chapter 9 - Friction>Exercise>Q 8

In a large commercial complex there are four ways to reach the main road. One of the path has loose soil, the second is laid with polished marble, the third is laid with bricks and the fourth has gravel surface. It is raining heavily and Paheli wishes to reach the main road. The path on which she is least likely to slip is

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IMPORTANT

Science Textbook of Competency Based Questions for Class VIII>Chapter 9 - Friction>Exercise>Q 9

Alida runs her toy car on a 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 _____.

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8th CBSE

IMPORTANT

Science Textbook of Competency Based Questions for Class VIII>Chapter 9 - Friction>Exercise>Q 10

Rajesh was walking along the footpath. He stepped on a banana skin and slipped.

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