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Friction
Quiz by Oak National Academy: KS3 Science (2)
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6 questions
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- Q1Which best describes what a friction force is?The force of one surface repelling another surface.The force of one surface gripping or rubbing on another surface.The force of one surface touching another surface.30s
- Q2Which picture shows the friction force of the ice on the sliding puck?30s
- Q3The size of a friction force between dry surfaces is affected by how ______ the surfaces are.Users enter free textType an Answer30s
- Q4Any substance added between two surfaces to reduce friction is called a ...Users enter free textType an Answer30s
- Q5Which gives the best explanation of how lubricants reduce friction?Lubricants keep surfaces slightly further apart.Lubricants should stay in place and not promote rusting.Lubricants are slippery.Lubricants are liquids so can flow.30s
- Q6Identify the false statement.Friction occurs when tiny irregularities catch, producing backwards forces.The size of the friction force between two surfaces can change.Friction forces can prevent movement.Friction forces can slow down an object.Friction forces only act when there is movement.30s