1) The force that pulls everything to the ground a) air resistance b) drag c) gravity d) streamlining 2) The unit of force named after a famous scientist a) gravity b) newton c) streamlining d) surface area 3) When something is falling in the air- the bigger the surface area the bigger the ... a) air resistance b) friction c) pull d) newton 4) An object moving on a rough surface is slowed down by this force a) friction b) surface area c) gravity d) drag 5) To make something move we need a push or a .... force a) drag b) streamlining c) surface area d) pull 6) When something moves through liquid or air it experiences this frictional force. a) gravity b) air resistance c) drag d) pull 7) This engineering technique reduces drag / air resistance. a) streamlining b) surface area c) drag d) friction 8) the larger this is for an object the large the air resistance a) friction b) gravity c) surface area d) air resistance

Friction quiz

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