Newton's Laws
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| Newton's 1st Law | an object at rest will remain at rest, and an object moving at a constant velocity, unless acted opon by an unbalanced force.
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| Newton's 2nd Law | the greater the mass, the greater the inertia
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| force = | mass x acceleration
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| acceleration = | net force / mass
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| measured in | Newtons (N)
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| Newton's 3rd Law | for every action, there is an equal and opposite reaction
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| gravity | a force that pulls objects toward each other
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| if you increase the force on an object, its acceleration | decreases
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| if you increase the mass on an object, its acceleration | stays the same
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| a resistance to a change in motion is | inertia
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| the amount of inertia an object has depends on its | mass
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| inertia | the tendancy of an object to resist a change in motion
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| speed = | distance / time
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| steeper slope = | faster acceleration
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| gravity = | 1. mass 2. distance
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| what is the name given to the force exerted by the first object on a second object? | reaction force
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| what is the name often given to the force exerted by the second object back on the first object? | action force
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| the action and reaction forces in any situation will always be | equal and opposite
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| the product of an object's mass and veloctiy is its | momentum
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| momentum = | mass x velocity
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| the unit of measurment for momentum | kg x m/s
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| law of conservation of momentum | in the absence of outside forces, the total momentum of objects that interact does not change.
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| another name for Newton's 1st Law | the law of inertia
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| what forces cause an object to accelerate | unbalanced forces
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| acceleration depends on | force and mass
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| reactions always go in the ... direction of the action | opposite
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| an action and its reaction are equal in | size
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| Newton's 3rd Law explains what happens when two objects | interact
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| forces always come in pairs so each ... has a reaction | action
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| the force of an action sends a reaction in the opposite | direction
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