Question

Be Define friction. Give one advantage and one disadvantage of friction.
How is wind energy more environment friendly than heat energy?डिफाइन फ्रिक्शन गिव वन एडवांटेज एंड डिसएडवांटेज ऑफ फ्रिक्शन ​

Answer 1

Answer:

Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other.[2] There are several types of friction

Explanation:

1. Advantages of Friction:
2. Friction is responsible for many types of motion
3. It helps us walk on the ground
4. Brakes in a car make use of friction to stop the car
5. Asteroids are burnt in the atmosphere before reaching Earth due to friction.
6. It helps in the generation of heat when we rub our hands.

Answer 2

Advantages of Friction:

Friction is responsible for many types of motion

Disadvantages of Friction:

Friction produces unnecessary heat leading to the wastage of energy.