Practice Wheels Reduce Friction (9.5) - FRICTION

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8 questions

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Exercise
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Quiz
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6 sample questions

Question 1.
What is rolling friction?
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Think about how wheels work.
Question 2.
Give an example of an object that uses rolling friction.
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Consider everyday items that move.
3Question 3.
What is the primary advantage of wheels over sliding surfaces?
- Increased friction
- Lesser effort to move
- Greater contact area
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Think about what makes it easier to transport items.
4Question 4.
True or False: Rolling friction is greater than sliding friction.
- True
- False
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Recall the definitions.
Question 5.
Design a wheeled mechanism that can transport a specific load up a slope. Describe how you would minimize friction in your design.
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Think about how to balance weight and friction.
Question 6.
If you were to improve the design of a suitcase to make it even easier to roll, what features would you add?
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Consider materials and size for optimal performance.

4 more questions in this section. Enroll free to practise them all.