Exercise
Static vs Kinetic Friction
In this interactive exercise, students will explore the fundamental differences between static and kinetic friction through hands-on experiments, engaging simulations, and real-world applications, allowing them to understand how these forces impact motion and everyday activities. By the end, learners will be able to identify scenarios where each type of friction occurs and predict the effects on movement and energy.
Questions
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MultiChoice
What is the key difference between static friction and kinetic friction?
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MultiChoice
Maximum static friction for a given surface is typically:
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MultiChoice
Why is it harder to start pushing a heavy box than to keep it moving?
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MultiChoice
A person pushes a sofa with 30 N of force, but it does not move. What friction force is present?
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MultiChoice
If you push a stationary cabinet with 30 N and it stays still, what is the static friction force?
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MultiChoice
Once an object starts sliding across a table, which friction force resists its motion?
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MultiChoice
As you gradually increase applied pushing force on a stationary object, static friction:
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MultiChoice
To keep an object sliding at a constant speed, the applied force must be:
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MultiChoice
Kinetic friction is also commonly referred to as:
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MultiChoice
A box breaks free and starts sliding when pushed with 50 N. Why did it start moving?
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MultiChoice
Which force prevents a parked car from rolling down a gentle hill?
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MultiChoice
As sliding speed increases moderately, kinetic friction generally: