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| What kind of surface creates more friction? |
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| example is moving an eraser across your desk |
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| example is moving a piece of furniture on wheels |
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| Which has more friction: sliding or rolling friction? |
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| examples are: swimming in water, sky diving |
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| examples are: swimming in water, sky diving |
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| when a force is applied to an object but does not cause the object to move |
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| 2 Ways to reduce friction: |
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1. use a lubricant
2. switch from sliding to rolling friction |
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| ways to increase friction: |
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1. make surfaces rougher
2. increase the force pushing the surfaces together |
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