Question
List three disadvantages of friction.
✓
Answer
Disadvantages of friction:
- Friction produces heat which damages the moving parts of a machine.
- Friction produces wear and tear on the contacting surfaces. This reduces the life of machine parts, tires and shoe soles.
- A lot of energy is wasted due to friction to overcome it before moving.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
What are renewable sources of energy ? Give two examples.
What is an eclipse? Name the two types of eclipses.
Draw a bar magnet and label magnetic poles, magnetic axis, magnetic equator and the effective length on it.
Solve the following numerical problem.
The masses of five marbles are 50 g, 55 g, 60 g, 65 g, and 70 g. Find their average mass.
The masses of five marbles are 50 g, 55 g, 60 g, 65 g, and 70 g. Find their average mass.
Define sliding friction
Can a transparent medium form an image? Explain your answer.
What are natural and artificial-magnets?
Explain in detail why there was a need to standardize units.