2006-10-27 10:16:29 · 7 answers · asked by AnnaQ 1 in Science & Mathematics ➔ Physics
Brakes on a vehicle use friction. Tires use friction to push on the road to go forward. The clutch uses friction. Walking with sneakers pushing on the walkway use friction.
2006-10-27 10:24:43 · answer #1 · answered by science teacher 7 · 0⤊ 0⤋
All devices "use" friction, as I understand the question. Friction is defined as 'surface resistance to relative motion' on Wikipedia. If generalized, this even applies to the motion of an electric current (a flow of electrons) in a conductor. One of the results of friction is heat which is caused at the atomic level by the forced interactions of the atoms and molecules involved. This is in turn the result of one of the four fundamental forces of nature, that is, the electromagnetic force. Any time atoms or molecules interact, this force, and hence, friction, is involved.
2006-10-27 17:48:48 · answer #2 · answered by Aletheia 1 · 0⤊ 0⤋
All. Your car uses the friction between the road and the tires to move. All belt drives are friction driven. If friction did not exist the world would not resist. Friction between the ground and the atmosphere causes the weather cycles.
2006-10-27 17:41:47 · answer #3 · answered by LIL_TXN 4 · 0⤊ 0⤋
Friction is the necessity of life without it u just can't do anything like even simple walking sitting on chair or pushing holding any objects all includes frictional force in it Even machine you even think of plays this principal so even car engine is having friction in it that's why u don't get 100% efficiency in anything.
2006-10-27 17:46:12 · answer #4 · answered by Anonymous · 0⤊ 0⤋
All conveyances use friction in one way or another. V-belt drives require friction to operate. Fasteners such as screws and nails use friction to hold two or more things together. Drinking glasses and table utensils use friction.
2006-10-27 17:26:24 · answer #5 · answered by Helmut 7 · 0⤊ 0⤋
brakes, erasers, pencils?
2006-10-28 16:23:02 · answer #6 · answered by Anonymous · 0⤊ 0⤋
toothbrush
2006-10-27 18:40:06 · answer #7 · answered by kano7_1985 4 · 0⤊ 0⤋