Term
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Definition
| the force that two surfaces exert on each other when they rub against each other |
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Term
| What does the strength of force of friction depend on? |
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Definition
1. how hard the surfaces push together
2. the types of surface involved |
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Term
| When does friction increase? |
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Definition
| if surfaces push hard against each other |
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Term
| Does friction act in the direction opposite or the same in an objects' motion? |
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Definition
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Term
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Definition
| the friction that acts on objects that are not moving |
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Term
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Definition
| when two solid surfaces slide over each other |
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Term
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Definition
| when an object rolls across a surface |
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Term
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Definition
| when a solid object moves through a fluid |
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Term
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Definition
| a force that pulls objects toward each other |
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Term
| What does the law of gravitation state? |
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Definition
| the force of gravity acts between all objects in the universe |
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Term
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Definition
| a measure of the amount in the matter in an object |
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Term
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Definition
| the force of gravity on a person or object at the surface of a planet |
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Term
| Which varies with the strength of gravitational force: weight or mass? |
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Definition
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Term
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Definition
| when the only force acting on an object is gravity |
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Term
| What is gravity on earth? |
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Definition
| a downward force that affects all objects |
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Term
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Definition
| objects falling through air experience |
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Term
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Definition
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