9.9 - Exercises
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Practice Questions
Test your understanding with targeted questions
Fill in the blank: Friction opposes the ____ between the surfaces in contact.
💡 Hint: Think about what does friction do to two sliding objects.
What is static friction?
💡 Hint: Remember it keeps things from moving.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does friction do?
💡 Hint: Think about what happens when you slide an object.
True or False: Static friction is greater than sliding friction.
💡 Hint: Consider what it takes to start moving a heavy box.
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Challenge Problems
Push your limits with advanced challenges
If a box is sliding down an inclined plane, but then sand is spread on the plane, what happens to the motion of the box?
💡 Hint: Consider what effect the rougher surface will have on the box's movement.
Design a sports shoe for a basketball player considering the type of friction needed. What features would your design include?
💡 Hint: Think about what helps athletes to make quick stops and direction changes.
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Reference links
Supplementary resources to enhance your learning experience.