Friction Quiz - CBSE Class 4 Science

Free practice quiz: Friction (CBSE Class 4 Science). 17 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

This CBSE Class 4 Science practice quiz has 17 multiple-choice questions on Friction, and 17 of them come with an explanation. Try the 5 sample questions below (tap an option to check yourself), then play the full quiz online. No sign-up needed.

Sample questions

1. Which surface would create the most friction?

   1. Ice
   2. Sandpaper
   3. Wet floor
   4. Smooth glass
   Show answer

   Answer: B. Sandpaper

   Sandpaper has a rough surface which creates a lot of friction compared to smoother surfaces like ice or glass.

2. Which situation would result in less friction?

   1. Pushing a heavy box on a carpet
   2. Sliding a small toy on a wood table
   3. Rolling a ball on grass
   4. Dragging a bag through sand
   Show answer

   Answer: B. Sliding a small toy on a wood table

   Wood on wood generally offers less friction compared to other rough surfaces like carpet or grass.

3. If you want to reduce friction between two surfaces, you can:

   1. Make them rougher
   2. Add oil
   3. Increase weight
   4. Increase speed
   Show answer

   Answer: B. Add oil

   Adding oil creates a lubricant layer between the surfaces, reducing friction and allowing smoother movement.

4. Which factor does NOT affect friction?

   1. Surface texture
   2. Weight of the object
   3. Speed of the object
   4. Type of material of the object
   Show answer

   Answer: C. Speed of the object

   While surface texture, weight, and type of material affect friction, the speed of the object does not inherently change the friction force.

5. Why can friction cause wear and tear?

   1. It is a pulling force
   2. It generates heat
   3. It is always negative
   4. It is invisible
   Show answer

   Answer: B. It generates heat

   Friction generates heat when objects rub together, leading to wear and tear over time.

More questions in this quiz

Answers and explanations are in the full quiz.

1. What happens to the movement of a toy car on a rough surface?
2. How does increasing the weight of an object affect friction?
3. What type of friction prevents an object from starting to move?
4. Why is it easier to slide a book on wood than on a carpet?
5. What is the best way to describe friction?
6. When two surfaces are made smoother, what happens to the friction?
7. How can friction be beneficial in sports?
8. What can be done to increase friction?
9. What type of friction occurs when an object rolls over a surface?
10. What is one way that animals use friction?
11. What happens to friction when we add a lubricant to an interface?
12. Which statement about friction is incorrect?

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