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18 Cards in this Set
- Front
- Back
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--> + --> = ?
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--------->
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--> + <------- = ?
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<---------
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--> + <-- = ?
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0
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inertia
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the tendency of an object to resist change in its motion
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what is newton's first law of motion, aka the law of inertia?
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an object at rest will remain at rest, and object in motion will remain in motion unless accted upon by an unbalanced force
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what is newton's second law of motion?
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the force of an object is equal to the product of its acceleration and mass
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newton
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equals the force required to accelerate one kg of mass at 1 meter per second
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what will happen if you place a force on an object?
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it will accelerate in the direction of the force
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what is newton's third law of motion?
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for every action, there is an equal and opposite reaction
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how does an increase of mass affect acceleration?
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the acceleration decreases
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how do you make it easier for machine parts to slide past each other?
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you put oil in it to reduce friction
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when is an object said to be in free fall?
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when the only force on a falling object is gravity
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air resistance
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a type of fluid friction that objects falling through air experience
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what is weight usually measured in?
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newtons
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momentum
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mass x velocity
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what does the law of conservation of momentum state?
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the total momentum of the objects that interact does not change
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centripetal force
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a force that causes an object to move in a circle
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what doesn't a satellite in orbit around earth fall?
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because the earth is curved and it is continuing to move in a forward motion
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