What is the advantage and disadvantage of love?
Advantage: In love marriage, individuals have their own choice and wish to get married to the specific person. Disadvantage: There’s a lot of anxiety and stress that people go through when they choose to spend their life with someone of their choice.
What is the advantages and 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.
What are the three disadvantages of friction?
Three disadvantages of friction are :
- Friction produces heat which damages the moving parts of a machine.
- Friction produces wear and tear on the contacting surfaces. This reduces the life of machine parts, tyres and shoe soles.
- A lot of energy is wasted in overcoming the friction before an object starts moving.
Where is friction useful and not useful?
The crumpled one falls faster because there is less air resistance acting on the paper. Friction can be useful. For example, friction between our shoes and the floor stop us from slipping and friction between tyres and the road stop cars from skidding. Friction is sometimes unhelpful.
What are uses of friction?
Friction is a resistance force that slows down or prevents motion, it is necessary for many applications where you might want to hold items or do things and prevent slipping or sliding. Friction is used in car brakes, when we walk or climb a hill, making a fire, skiing down a hill, and more.
What is nature of friction?
Friction is a force that appears whenever two objects come in contact with each other. It is the opposite of all motion. No matter which direction something moves in, friction pulls it the other way.
What are 2 types of friction?
There are two main types of friction, static friction and kinetic friction. Static friction operates between two surfaces that aren’t moving relative to each other, while kinetic friction acts between objects in motion.
What is the basic nature of friction force?
The frictional force is an aggregate effect arising from various physical phenomena: elasticity, adhesion, viscosity, capillary forces, surface chemistry, phononic and electrostatic interaction, etc. Any of them can dominate depending on conditions. Each tribology field investigates friction at its own scale.
What is called friction?
Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. There are several types of friction: Dry friction is subdivided into static friction (“stiction”) between non-moving surfaces, and kinetic friction between moving surfaces.
Which type of friction is the weakest?
Rolling friction is defined as the force which resists the motion of a ball or wheel and is the weakest types of friction.
What is friction force examples?
For example, if a book slides across the surface of a desk, then the desk exerts a friction force in the opposite direction of its motion. Friction results from the two surfaces being pressed together closely, causing intermolecular attractive forces between molecules of different surfaces.
What are some examples of high friction?
Some examples of high friction are:
- glass on glass.
- rubber on rubber.
- metals on skin.
How is friction important in everyday life?
Since friction is a resistance force that slows down or prevents motion, it is necessary in many applications where you might want to hold items or do things and prevent slipping or sliding. Friction is also necessary to stop a car or bike through the use of brakes.
What are some examples of harmful friction?
HARMFUL FRICTION
- Slipping on ice.
- Wet roads.
- Mudslides.