Friction force experiment for kids Check out an example
Friction is the resistance of motion when one object rubs against another. Anytime two objects rub against each other, they cause friction.
How can we prevent friction? One way to reduce friction is with a lubricant like grease or oil. Machines and engines use grease and oil to reduce friction. These machines can last longer. Another way to reduce friction is to change the types of materials in contact with one another.
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