1) You need _____________ to move an object. a) motion b) friction c) gravity d) force 2) _____________ can be a push or a pull. a) friction b) force c) work d) matter 3) What pulls things to the ground? a) environment b) gravity c) matter d) friction 4) What slows the motion of an object? a) gravity b) push c) pull d) friction 5) Playing piano is an example of: a) gravity b) push c) pull d) friction 6) Playing tug-o-war is an example of: a) gravity b) push c) pull d) friction 7) Skydiving is an example of: a) gravity b) push c) pull d) friction 8) Using beaks on a car is an example of: a) gravity b) push c) pull d) friction 9) Simple machines... a) move objects easier b) calculate totals c) wash your clothes 10) Stairs are an example of which simple machine? a) wedge b) pulley c) inclined plane d) screw 11) Scissors are an example of which simple machine? a) pulley b) lever c) inclined plane d) screw 12) A door stop is an example of which simple machine? a) screw b) lever c) inclined plane d) wedge 13) A light bulb uses which simple machine? a) screw b) lever c) inclined plane d) wedge 14) Two animals are on a see saw, it does NOT move. Is this force... a) balanced b) unbalanced 15) A child is swinging on a swing. Is this force... a) balanced b) unbalanced 16) What force is used when surfing? a) moving air b) moving water c) hitting d) cranking 17) What force is used when sailing a boat? a) moving air b) moving water c) hitting d) cranking 18) What force is used when snowboarding? a) moving air b) moving water c) downhill motion d) cranking

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