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15 Cards in this Set
- Front
- Back
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motion |
a moving of an object by a reference point to another reference point |
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reference point |
things that do not move (The earth is our most common reference point) |
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speed= |
distance/time (measurements are mph or kilometers per hour) |
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Constant speed |
the same amount of speed |
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average speed |
same speed going ascending and descending |
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actual speed |
the actual speed |
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force |
a push or a pull (measured in Newtons or N) Hint 100g = 1N |
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Balance forces there are two |
1. opposite direction 2. no motion |
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unbalanced force |
1. movement 2. goes in the direction with of the greater force |
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Friction |
a force that opposes motion between two surfaces that are contact |
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Velocity= |
speed and direction |
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acceleration |
a change in velocity-speed or direction |
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Kinetic Friction |
is sliding or rolling |
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Static Friction |
is to stay |
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Law of Universal Gravitation |
-not a theory Believed around the world Universal means even in the universe Sir Issac Newton about 1665 Frictions two factors are mass and density |
