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Questions and Answers
Which of the following best explains why the puck doesn't go very far on carpet when hit with a hockey stick?
Which of the following best explains why the puck doesn't go very far on carpet when hit with a hockey stick?
- Carpet is rougher than ice
- Carpet has more friction than ice (correct)
- Carpet is smoother than ice
- Carpet has less friction than ice
What force causes objects to slow down when moving across surfaces?
What force causes objects to slow down when moving across surfaces?
- Gravity
- Friction (correct)
- Inertia
- Momentum
Which of the following surfaces tends to have a lot of friction when an object moves across it?
Which of the following surfaces tends to have a lot of friction when an object moves across it?
- Sticky surfaces
- Rough and sticky surfaces (correct)
- Rough surfaces
- Smooth surfaces
Why does the hockey puck move much farther with one push across ice than across a carpeted floor?
Why does the hockey puck move much farther with one push across ice than across a carpeted floor?
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What happens to the velocity of the puck when it slides across the carpet and slows down?
What happens to the velocity of the puck when it slides across the carpet and slows down?
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Which of the following is a characteristic of friction in space?
Which of the following is a characteristic of friction in space?
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What happens to an object in space if no force is exerted upon it?
What happens to an object in space if no force is exerted upon it?
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What can cause an object in space to stop moving?
What can cause an object in space to stop moving?
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