In which direction does friction act?

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Prepare for the Year 10 Force and Motion Test. Utilize flashcards and multiple-choice questions with clear hints and explanations to ensure success. Equip yourself for excellence on your exam!

Multiple Choice

In which direction does friction act?

Explanation:
Friction acts to oppose motion. It is the resistance that surfaces exert to sliding, and its direction is opposite to the way the surfaces would move relative to each other. So if an object is moving (or about to move) in a certain direction, the friction force points in the opposite direction along the surface. This is why a push to the right has friction pushing left, slowing or stopping the motion. Friction always lies along the surface, not up or down, and it can act to prevent motion (static friction) or to slow motion that's already happening (kinetic friction).

Friction acts to oppose motion. It is the resistance that surfaces exert to sliding, and its direction is opposite to the way the surfaces would move relative to each other. So if an object is moving (or about to move) in a certain direction, the friction force points in the opposite direction along the surface. This is why a push to the right has friction pushing left, slowing or stopping the motion. Friction always lies along the surface, not up or down, and it can act to prevent motion (static friction) or to slow motion that's already happening (kinetic friction).

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