Physics Vocab 1
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13 Terms
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Speed
The distance traveled in a single unit of time
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Velocity
An object's speed in a particular direction
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Acceleration
Any change in an object's speed or direction.
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Inertia
How much an object resists acceleration
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Force
Any push or pull.
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Balanced forces
When two or more forces act on an object at the same time, and they cancel each other out.
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Unbalanced forces
When two or more forces are acting on an object, and one is not cancelled out by the other(s).
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Observation
Information about an object or event that is collected using your senses, or tools that help your senses.
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Inference
A conclusion you make based on observations and things you knew before.
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Quantitative data
Data that includes numbers and units.
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Qualitative data
Data that does not include numbers.
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Scientific error
Differences in data when the same thing is measured repeatedly.
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Newton's first law
An object will not change it's velocity or accelerate unless an unbalanced force acts on it.
Note 
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