10 examples of friction in our daily life

Overcoming Inertia Once an object starts moving, inertia keeps it moving without any additional force being applied. Friction opposes the motion of all moving objects, so—like the skateboard—all moving objects eventually stop moving even if no other forces oppose their motion.

Friction is what holds your shoe to the ground. The friction present on the ice is very little, this is the reason why it is hard to walk on the slippery surface of the ice. Writing – A frictional force is created when the tip of the pen comes in contact with the surface of the paper.

• Driving of a a vehicle on a surface.
• Applying brakes to stop a moving vehicle.
• Skating.
• Walking on the road.
• Writing on notebook/ blackboard.
• Flying of aeroplanes.
• Drilling a nail into wall.
• Sliding on a garden slide.

Advantage:Friction is help use to move one place to another place . Disadvantage:when the friction come on walking and running they work on the sole of shoes and the a sole of shoes is decreased by running and walking so, it is costly. Advantages of friction : Friction helps us to walk on the ground.

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.

Friction also causes overheating of engines. This accelerates breakdown and decreases efficiency. Increased efficiency demands need increased fuel or energy consumption due to friction. Heat generated due to friction can cause expansion of materials as well.

Friction is sometimes unhelpful. For example, if you don’t lubricate your bike regularly with oil, the friction in the chain and axles increases. Your bike will be noisy and difficult to pedal. When there is a lot of friction between moving parts, energy is lost to the surroundings as heat.

The examples to illustrate that friction is a necessary evil are:

• If friction were absent, we would not be able to walk.
• Friction is necessary to burn a matchstick.
• It is due to friction that we can write on a board by a chalk.

Force | Short/Long Answer Questions The examples to illustrate that friction is a necessary evil are : If there was no friction, we would not be able to walk. If there was no friction, we would not be able to drive vehicles on the road. If there was no friction, we wouldn’t be able to write with a chalk on the board.

Static friction is the frictional force which keeps the object at rest. Sliding friction is the frictional force on the object when the object is moving (or sliding) over a surface. Rolling friction is the frictional force on the object when the object rolls over a surface.

Sliding friction is the friction which comes into play when the surface of one object moves relative to the surface of another object. Static friction arise when you push the the bag on the flat surface. Sliding friction arises when you push the same bag over an inclined surface.