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18 Cards in this Set

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velocity
the rate of change of displacement; includes both speed and direction
average speed
equals distance divided by time
displacement
measures the change in position of an object, using the starting point and ending point and noting the direction
kinetic energy
energy an object has due to its motion; depends on the object's mass and velocity
speed
the rate of change of an object's position
average velocity
equals displacement divided by time
relative motion
motion of an object which is described relative to a particular frame of reference
law of conservation of energy
states that energy cannot be destroyed or created; it is only transformed from one form to another
inertia
measures an object's tendency to remain at rest or to stay in constant motion
GPE
equals force of gravity X height

GPE = mgh
acceleration
the rate of change of velocity; can act in the direction of motion, at an angle, or opposite to the direction of motion.
gravitational potential energy
the energy an object could potentially gain if it falls, depending on its mass and the height it can fall
average acceleration
equals change in velocity divided by time
energy
the ability to cause change; cannot be destroyed or created, only transferred from one form to another
mass
quantity of matter in an object and a measure of the object's inertia; unit is the kilogram
momentum
mass X velocity

p = mv
law of conservation of momentum
states that if no outside forces act on a group of objects, the momentum of the group will not change
momentum
the product of mass and velocity; quantity of motion for an object