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19 Cards in this Set
- Front
- Back
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Speed is?
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change of position over time
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Instantaneous Speed is?
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rate of motion (distance/time) at any given instant.
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Average Speed is?
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total distance traveled divided by total time of travel.
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Constant Speed is?
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speed that does not vary (change).
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What is Velocity?
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describes speed and direction.
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Acceleration is?
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change of velocity (speed and direction)
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What is force?
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push or pull one body exerts on another.
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Balance Force is?
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forces on an object that is equal in size and opposite in direction.
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What is Net Force?
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changes of velocity on an object.
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Inertia is?
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velocity of object remains constant unless a forces changes it.
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What is friction?
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force that opposes motion between two surfaces that are touching each other.
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Newton's 1st Law states. . .
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object keeps moving at a constant velocity until a net force acts on it.
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What is gravity
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every object in universe exerts force on every other object.
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Weight is . . .
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force of gravity on an object.
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What is equation for speed (velocity)?
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distance / time
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What is formula for acceleration?
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(velocity (final) - velocity (initial)) / time
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What is the conversion of mass to Newton ?
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1 kg =- 9.8 N
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What is velocity final?
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Velocity at the end.
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What is velocity initial?
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Velocity at the start.
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