1) Friction force is ---------------- the surfaces of two objects in contact together. a) between b) above c) under d) beside 2) The friction force is always in the opposite direction of the object's movement a) True b) False 3) Slipping on ice is easier than on sand because it has ---------------- friction. a) less b) more c) same 4) Pulling a big wooden box on a smooth ceramic floor is harder than pulling it on the carpet. a) True b) Flase 5) Friction force -------------- the moving object. a) slows down b) speeds up c) doesn't affect on

Friction force

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