NCERT Solutions for Chapter: Friction, Exercise 1: Exercises

Author:NCERT

NCERT Science Solutions for Exercise - NCERT Solutions for Chapter: Friction, Exercise 1: Exercises

Attempt the free practice questions on Chapter 12: Friction, Exercise 1: Exercises with hints and solutions to strengthen your understanding. SCIENCE TEXTBOOK FOR CLASS VIII solutions are prepared by Experienced Embibe Experts.

Questions from NCERT Solutions for Chapter: Friction, Exercise 1: Exercises with Hints & Solutions

EASY
8th Sikkim Board
IMPORTANT

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 _____.

MEDIUM
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IMPORTANT

Suppose your writing desk is tilted a little. A book kept on it starts sliding down. Show the direction of the frictional force acting on it.

MEDIUM
8th Sikkim Board
IMPORTANT

You spill a bucket of soapy water on a marble floor accidentally. Would it make it easier or more difficult for you to walk on the floor? Why?

MEDIUM
8th Sikkim Board
IMPORTANT

Explain why sportsmen use shoes with spikes.

EASY
8th Sikkim Board
IMPORTANT

Iqbal has to push a lighter box, and Seema has to push a similar heavier box on the same floor. Who will have to apply a larger force, and why?

MEDIUM
8th Sikkim Board
IMPORTANT

Explain why sliding friction is less than static friction.

EASY
8th Sikkim Board
IMPORTANT

Give examples to show that friction is both a friend and a foe.

MEDIUM
8th Sikkim Board
IMPORTANT

Explain why objects moving in fluids must have special shapes.