Friction Worksheet-1

Friction Worksheet-1

1. Friction opposes the_____ between the surfaces in contact with each other.

2. Friction depends on the _____of surfaces.

3. Friction produces____.

4. Sprinkling of powder on the carom board _____ friction.

5. Sliding friction is_____ than the static friction.

6. The friction always_____ the direction of motion.

7. All objects moving in fluids have_____ shape to reduce friction.

8. Smooth surfaces produce _____friction than rough surfaces.

9. The substances are used in machines to protect their surfaces from wear and tear caused by friction are called _____.

10. Friction opposes the _____ between the surfaces in contact with each other.

11. Sprinkling of powder on the carom board _____ friction.

12. Match the following:

Answer:

1. relative motion

2. Nature

3. Heat

4. Reduces

5. Less

6. Opposes

7. Streamlined

8. Lesser

9. Lubricants

10. relative motion

11. Reduces

12. A–S, B–P, C–Q, D–T, E–R