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Fair Physics

Review of motion and energy

QuestionAnswer
distance divided by time speed (s)
SI units for distance (length) meters (m)
SI units for time seconds (s)
energy based on position potential (PE)
energy based on velocity kinetic (KE)
energy that is the sum of PE and KE mechanical (ME)
SI units for energy joules (J)
Ways to be accelerating speed up , slow down , change direction
object is moving at constant speed in a circular path centripetal acceleration
object is in this state if falling and gravity is only force acting on it free fall
system where no new energy enters and no existing energy leaves (conserved) closed
system where energy can enter and leave (not conserved) open
has a value of 10 m/s^2 in the downward direction on Earth gravity
formula for PE mgh
formula for KE 1/2m x v^2
amount of matter and object has mass
speed with a direction velocity
SI units for mass kilograms (kg)
Created by: cadetjt
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