CBSE Class 8 Science Chapter 9 Friction MCQs

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CBSE Class 8 Science Chapter 9 Friction Multiple Choice Questions

CBSE Class 8 Science Chapter 9 Friction MCQs

Question 1. In the figure, a boy is shown pushing the box from right to left.

CBSE Class 8 Science Chapter 9 Static Vs Kinetic Friction Comparison Demo

The force of friction will act on the box

  1. From right to left (←)
  2. From left to right (→)
  3. Vertically downwards (↓)
  4. Vertically upwards (↑)

Answer: 2. From left to right (→)

Read And Learn More CBSE Class 8 Science Multiple Choice Questions

Question 2. To sharpen the blade of a knife by rubbing it against a surface, which of the following will be most suitable?

  1. Stone
  2. Plastic block
  3. Wooden block
  4. Glass block

Answer: 1. Stone

Question 3. A toy car released with the same initial speed will travel the farthest on

  1. Muddy Surface
  2. Polished Marble Surface
  3. Cemented Surface
  4. Brick Surface

Answer: 2. Polished Marble Surface

CBSE Class 8 Science Chapter 9 Friction Multiple Choice Questions

Question 4. A boy rolls a rubber ball on a wooden surface. The ball travels a short distance before coming to rest. To make the same ball travel a longer distance before coming to Rest he may

  1. Spread a carpet on the wooden surface
  2. Cover the ball with a piece of cloth
  3. Sprinkle talcum powder on the wooden surface
  4. Sprinkle sand on the wooden surface

Answer: 3. Sprinkle talcum powder on the wooden surface

Question 5. It is difficult to walk on a well-polished floor because the friction between our feet and the floor is

  1. Increased
  2. Reduced
  3. Same
  4. None of these

Answer: 2. Reduced

Question 6. A student wants to move a heavy block from one place to another. What method should the student apply to reduce the effort?

  1. Pull the block using a rope
  2. Place wheels under the block
  3. Slide the block along the surface
  4. Apply oil to the bottom of the block

Answer: 2. Place wheels under the block

Question 7. The picture shows four types of shoe soles.

CBSE Class 8 Science Chapter 9 Deep Tread Vs Smooth Sole Friction Test

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

  1. Sole 1
  2. Sole 2
  3. Sole 3
  4. Sole 4

Answer: 4. Sole 4

Question 8. We can increase the friction by

  1. Polishing
  2. Making grooves and treads
  3. Streamlining
  4. Using a ball bearing

Answer: 2. Making grooves and treads

Question 9. If we apply oil to the door hinges, the friction will

  1. Increase
  2. Decrease
  3. Disappear altogether
  4. Will remain unchanged

Answer: 2. Decrease

CBSE Class 8 Science Chapter 9 Friction Multiple Choice Questions

Question 10. Fine powder is poured on the carromboard to

  1. Increase Friction
  2. Decrease Friction
  3. Both (a) and (b)
  4. None of these

Answer: 2. Decrease Friction

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