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12 Cards in this Set
- Front
- Back
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1st law |
an object at rest remains at rest as long as no net force acts on it. An object moving with constant velocity continues to move with the same speed and in the same direction as long as no net force acts on it. |
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an object doesn't change its—— or its——- of motion unless a ——— causes it to. |
Speed direction net force |
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Matter is lazy as in: |
Doesnt change its motion unless forced to |
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Inertia: |
the tendency of an object to resist any change in its motion |
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An objects mass is the measure of |
Weight an obj has |
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We use this form when only one force causes an acceleration. This equation relates the magnitude of the force to the magnitude of the acceleration. As for the direction, the acceleration is always in the same direction as the force |
We use this form when only one force causes an acceleration. This equation relates the magnitude of the force to the magnitude of the acceleration. As for the direction, the acceleration is always in the same direction as the force |
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What type of eq is soff=ma |
Vector |
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An obj acc is always |
The same direction as the force |
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Force always |
Comes in pairs |
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Force in pairs are |
Equal in magnitude |
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Newton’s third law |
for every action force acting on an object, there is a reaction force acting on a different object. the action and reaction forces are equal in magnitude and opposite in direction. |
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Paired action forces always |
act on different objects, as a result, the two forces do not cancel |
