Olympiad Test: Friction - 1


10 Questions MCQ Test Science Olympiad Class 8 | Olympiad Test: Friction - 1


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Attempt Olympiad Test: Friction - 1 | 10 questions in 20 minutes | Mock test for Class 8 preparation | Free important questions MCQ to study Science Olympiad Class 8 for Class 8 Exam | Download free PDF with solutions
QUESTION: 1

Which of the following represents frictional force?  

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QUESTION: 2

Which of these is true about friction?

Solution:

 The correct answer is c

Friction can slow things down and sometimes make things go faster because of the grip that it causes.  MAKING FIRE When friction happens some of the energy stored in the object turns into heat energy. If you rub your hands together you can feel them start to get warm.

QUESTION: 3

Two bodies in contact but not moving with respect to each other can exert

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QUESTION: 4

Oiling or greasing of moving parts in a machine

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QUESTION: 5

Disadvantage of friction is that

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QUESTION: 6

A ball moving on a horizontal surface stops because of the

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QUESTION: 7

When one object moves over the surface of other object,

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QUESTION: 8

Ball bearings are useful because rolling friction is

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QUESTION: 9

The smoother the surface is, _____ will be the friction.

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QUESTION: 10

Fluid friction can be reduced by

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