Smooth surfaces create __ friction.

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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

Smooth surfaces create __ friction.

Explanation:
Friction depends on how rough the surfaces are. The bumps and irregularities on a surface cause sliding to resist because they catch and interlock as you move. When a surface is smooth, there are fewer of those irregularities, so there’s less resistance to motion. But friction isn’t zero—there’s still some resistance from microscopic contact and atom interactions. So smooth surfaces create less friction, compared with rough ones. The other options don’t fit because rough surfaces don’t reduce friction, there’s never truly no friction, and saying only a slight amount ignores how smoothness reduces the friction coefficient relative to rougher surfaces.

Friction depends on how rough the surfaces are. The bumps and irregularities on a surface cause sliding to resist because they catch and interlock as you move. When a surface is smooth, there are fewer of those irregularities, so there’s less resistance to motion. But friction isn’t zero—there’s still some resistance from microscopic contact and atom interactions. So smooth surfaces create less friction, compared with rough ones. The other options don’t fit because rough surfaces don’t reduce friction, there’s never truly no friction, and saying only a slight amount ignores how smoothness reduces the friction coefficient relative to rougher surfaces.

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