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Class 8 Science Chapter 12 Friction Quiz 1 (25 MCQs)

Quiz Instructions

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1. Sliding friction is smaller than:
2. A man's boat was stuck on shore when the tide went out. So, he began pushing his boat across the mud to get to the water. Also, the coefficient of friction among his wooden boat and the mud is $\mu$= 0.400. Furthermore, the mass of the boat is 50.0 kg. Then find the magnitude of the force of friction acting on the boat?
3. The amount of friction depends on the weight of the objects
4. Friction depends upon:
5. What is a force?
6. To and fro motion of an object is called
7. What kind of substances are known as lubricants?
8. This type of force resist motion between two surfaces that are in contact with each other
9. The bus is travelling and the car is travelling. Who will feel more friction
10. Sliding friction is more than static friction
11. What type of friction affects a moving car while driving?
12. Applying WD-40 to a squeaky door turns ..... friction into ..... friction.
13. Which of the following friction is least?
14. Which of the following activity is easier to perform on a 10kg drum?
15. Friction is a
16. If the irregularities on two surfaces are less, the friction between them will be
17. If limiting friction of a body is 60 N and force applied is 62 N then the body will
18. Walking is an example of which type of friction?
19. Friction depends on the
20. Friction is a force that ..... the motion of an object.
21. Four children were asked to arrange forces due to rolling, static and sliding frictions in an increasing order. Their arrangements are given below. Choose the correct arrangement.
22. Which of the following is a common effect of friction on moving objects?
23. Effects of friction
24. Which one of these characteristics does a smooth surface has?
25. Friction always ..... any relative motion between the two surfaces that are in contact with each other
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