Practice Friction (A.2.2) - Theme A: Space, Time, and Motion

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10 questions

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6 sample questions

Question 1.
What is the name of the friction that acts when an object is moving?
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This type of friction occurs during motion.
Question 2.
What does $\mu$ stand for in friction equations?
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It's a measure of how much friction exists between two surfaces.
3Question 3.
What is static friction?
- Friction during motion
- Friction preventing motion
- Friction at high speeds
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Think about pushing a stationary object.
4Question 4.
True or False: Kinetic friction is generally greater than static friction.
- True
- False
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Consider how hard it is to start moving something compared to keeping it moving.
Question 5.
A car weighs 1200 kg and has a coefficient of static friction of 0.7. Calculate the maximum static friction before it starts to move.
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Find the normal force first by using the weight.
Question 6.
Describe how friction impacts a skateboarder accelerating on flat ground versus on a hill.
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Think about how weight affects movement when going uphill vs. flat.

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