What is friction? Give explanation and 5 examples.
Answers
Answer:
Hello mate
Explanation:
Friction is the resistance to motion of one object moving relative to another. It is not a fundamental force, like gravity or electromagnetism. Instead, scientists believe it is the result of the electromagnetic attraction between charged particles in two touching surfaces.
Examples of friction are :-
- Rubbing both hands together to create heat.
- A sled sliding across snow or ice.
- Skis sliding against snow.
- A person sliding down a slide is an example of sliding friction.
- A coaster sliding against a table.
- A washing machine pushed along a floor.
- An iron being pushed across material.
Answer:
It is the force which opposes the normal flow of movement in a moving body . It acts in the opposite direction of force applied and has the same amount of energy.
Explanation:
1. A rolling ball stops faster in a rough ground than a smooth polished floor.
2. We can't pedal the cycle if we don't put much force in it and use Grease to decrease friction.
3. When we use breaks the friction stops the tyres.
4. We don't fall easily while running on a grass field while wearing spiked sports shoes instead of normal shoes.
5. Can't remember. :-D