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Grade 3 | Science | Friction, Light, Sound and Force, Olympiad, CBSE, ICSE, Maths Olympiad, Science Olympiad, English Olympiad
FrictionFriction is a special type of force which causes the resistance in motion when one object comes in contact against another. We can say that anytime two objects are rubbed against each other, they cause friction. Friction always works against the motion.
In some cases, we want to prevent friction. A good example of this is a ball or wheel. They roll to reduce friction. Another way to reduce friction is with a lubricant like grease or oil. Machines and engines use grease and oil to reduce friction and prevent damage to the crucial parts so they can last longer.
It also help us in many ways, we would all just be sliding around everywhere if there wasn't friction to keep us steady. Friction helps a car to stop when brakes are applied, it also helps us to hold the things we want to.
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