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22 Cards in this Set
- Front
- Back
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Push or pull that transfers energy to an object |
Force |
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Greek philosopher who believed terrestrial motion is always linear and always comes to a halt |
Aristotle |
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Physicist that said all objects in motion stay in motion unless acted on by a force |
Newton |
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Opposes the motion of an object |
Friction |
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Between 2 solid surfaces |
Sliding friction |
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Between a round solid object and a solid surface |
Rolling friction |
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Friction of liquids and gases |
Fluid friction |
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Things that increase friction |
Studded snow tires, and shoe soles |
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Forces of equal sizes that are exerted in opposite directions |
Balanced |
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Forces that are not opposite or equal |
Unbalanced |
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An object at rest will stay at rest and an object in motion will stay in motion unless acted on by an unbalanced force |
Law of inertia; Newton’s first law |
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The tendency of matter to remain in motion or at rest |
Inertia |
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Unbalanced forces accelerate an object in the direction of the force |
Law of acceleration |
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______=mass * acceleration |
Force |
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For every action there is an equal and opposite reaction |
Law of interaction; Newton’s third law |
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Any object of any size will accelerate during free fall at..... |
Free fall motion— 9.8m/s |
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Reached when air resistance equals gravitational pull and the object falls at a constant speed |
Terminal velocity |
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Force required to change the direction of a moving object |
Centripetal force |
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Requires a force to be directed towards the center of a circular path |
Centripetal acceleration |
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Factors affecting gravity |
Weight and mass |
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Amount of matter in an object |
Mass |
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Measure of force of gravity between 2 masses |
Weight |
