9.1 - Force of Friction
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Practice Questions
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What is friction?
💡 Hint: Think about how you stop a moving bicycle.
Name the two types of friction.
💡 Hint: One is when objects are at rest and the other when they are moving.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What type of friction occurs when an object is at rest?
💡 Hint: What happens when you try to push a heavy box without it moving?
True or False: Rolling friction is always greater than sliding friction.
💡 Hint: Think of how easy it is to roll a ball compared to sliding it.
1 more question available
Challenge Problems
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A heavy box rests on a rough surface. If the static friction is much greater than the weight, how can we move it?
💡 Hint: Think about how mechanics move heavy equipment.
In a fluid environment, how can an object be designed to minimize drag?
💡 Hint: What happens to your hand when you thrust it through water?
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