Friction And Drag (Year 8 Physics)

The following test is covering 'Friction And Drag' for Year 8 Physics.

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Question 1

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What can reduce friction?

Why do we oil machines?

What kind of friction exists between the wheels of a moving car and the road?

What happens to the friction between solid objects when they are submerged in a fluid?

Which of these increase air resistance?

What is friction?

What happens when friction is reduced?