Physics - Newton's Law of Motions

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Physics

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35 Terms

1
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volume/density of an object
Mass
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all force from all directions is equal
Unbalanced Force
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For every force (action) there is an equal and opposite force (reaction)
Law of Interaction
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how fast the object is in related to direction
Velocity
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gravity related - push/pull force
Force
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the rate of change of velocity with time
Acceleration
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A body at rest will remain at rest and a body in motion will remain in motion unless acted upon by a net force
Law of Inertia
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is inversely proportional to the mass of the body
Law of Acceleration
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The external or outside force
Net Force
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_ = ma
Force
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composition inside of an object/relation to gravity
Weight
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_ = F over m
Acceleration
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_ = F over a
Mass
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If you increase the force on an item without changing the mass, you increase _______________
Acceleration
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In Newton's ______ Law of Motion, force can make an object change direction
Second
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_______ can cause Acceleration
Forces
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If you increase the _____ on an item without increasing the force, you can't increase the acceleration
Mass
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It is much easier to carry your backpack when it is empty rather when it's full of textbooks.
Law of Acceleration
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When you are standing in a subway train and the train suddenly stops but your body continues to move forward
Law of Inertia
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When you give your friend a lift on your bike you have to pedal harder and faster to keep the same speed as you had when you were on your bike alone
Law of Acceleration
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Two bumper cars collide into each other and each car jolts backwards
Law of Interaction
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A boy is going down the slide. As he reaches the bottom, friction causes him to slow down and stop
Law of Inertia
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the rate at which work is done
Power
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capacity to do work
Energy
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it is the measure of the energy transfer
Work
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energy at rest
Potential Energy
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transfer of energy from moving object
Kinetic Energy
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__ = fd (force) (distance)
Work
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-- = W over t
Power
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-- = mgh
PE (Potential Energy)
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-- = 1/2 mv squared
KE (Kinetic Energy)
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Unit for work
Joule/s
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Unit for power
J/s (Joules per second)
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Unit for KE and PE
J (Joule/s)
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2 Alter units for power
1. W (Watts)
2. Hp (Horsepower)