Friction

Revision for the end of unit test for Year 4 on the unit of friction. Suitable for use with QCA Unit 4E.
What F is a force which tries to slow things down?. What N is the unit that force is measured in?. What N is the instrument used to measure force?. What S describes the shape which helps objects move quickly through air or water?. What W is the force which tries to slow objects down in water?. What A is the force which tries to slow objects down in air?. What S is the place where fiction acts and can be rough or smooth?. What H is made when two surfaces rub together?. What L is done using liquid to reduce friction? . What O is used to lubricate machines ?. What B is a good household lubricant that you might put on bread? . What R describes a surface where friction is high? . What S describes a surface where friction is low?. What G is a force which tries to attract an object to a planet? . What F is used to measure force?. What F is needed to make an experiment accurate? . What P is used to slow an object falling through the air?. What S is designed to travel through the water? . What A is designed to travel through the air?. What T is a place on a car that should have a lot of friction to stop a car sliding on the road?.

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