write 10 disadvantages of friction and 10 advantages of friction pls help me I'm 8 class.
Answers
Answer:
Advantages-
1. Helps us to write
2. Helps us to walk
3. Help the vehicles to move on the road
4. Provides grip to kabaddi players
5. Helps the coins to move on a carrom board
6. Brakes on a car use friction to stop the vehicles.
7. We can not fix nail in the wood or wall if there is no friction. It is friction which holds the nail.
8. A horse can not pull a cart unless friction furnishes him a secure Foothold.
Disadvantages
1 It produces heat in various parts of machines. In this way some useful energy is wasted as heat energy.
2. Due to friction we have to exert more power in machines.
3. It opposes the motion.
4. Due to friction, noise is also produced in machines.
5. Due to friction, engines of automobiles consume more fuel which is a money loss.
6. Machine efficency is decreased: energy input is lost to heat
7. It can cause unwanted heat (e.g. in machine parts), and it wears things out like shoes.
8. Forest fires are caused due to friction between branches of trees
Answer:
make me brainlist
Explanation:
Advantages and Disadvantages of Friction
Friction is the resistance to motion of one object moving relative to another. There are several types of friction. Some advantages and disadvantages of Friction are given below.
Advantages of Friction:
Friction is responsible for many types of motion
It helps us walk on the ground
Brakes in a car make use of friction to stop the car
Asteroids are burnt in the atmosphere before reaching Earth due to friction.
It helps in the generation of heat when we rub our hands.
Disadvantages of Friction:
Friction produces unnecessary heat leading to the wastage of energy.
The force of friction acts in the opposite direction of motion, so friction slows down the motion of moving objects.
Forest fires are caused due to the friction between tree branches.
A lot of money goes into preventing friction and the usual wear and tear caused by it by using techniques like greasing and oiling.