Question

ADVANTAGES AND DISADVANTAGES OF STATIC FRICTION?

Answer 1

Answer:

ADVANTAGES OF FRICTION

Friction plays a vital role in our daily life. Without friction we are handicap.

1. It is becomes difficult to walk on a slippery road due to low friction. When we move on ice, it becomes difficult to walk due to low friction of ice.

2. We can not fix nail in the wood or wall if there is no friction. It is friction which holds the nail.

3. A horse can not pull a cart unless friction furnishes him a secure Foothold.

4. We can write on a paper or on a board.

5. Friction helps in applying the brakes.

6. It helps in walking on floor.

7. Coffee mug stays on the dashboard

8. Shuffling across a carpet to shock someone

9. Draging of atmosphire with earth is possible

10. Helps to pevents the life on earth by burning astroids.

DISADVANTAGES OF FRICTION

Despite the fact that the friction is very important in our daily life, it also has some disadvantages like:

1. The main disadvantage of friction is that 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. Getting shocked by doorknobs

8. Rug burn

9. It counteracts movement and so it takes more energy to move, it can cause unwanted heat (e.g. in machine parts), and it wears things out like shoes.

10. Forest fires are caused due to friction between branches of trees

Explanation:

Hope it helps you.

Answer 2

Answer:

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.