physics - unit 1
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13 Terms
anomalous result
a result that does not fit the pattern of the other results
accuracy
how close a measurement is to the true or accepted value
precision
how close repeated measurements are to each other
resolution
the smallest change in a measurement that a measuring instrument can detect or show
speed
the rate of change of distance
velocity
the rate of change of displacement
acceleration
the rate of change in velocity
distance
a scalar quantity indicating how much ground an object has covered. it accounts for the entire path travelled, it can only increase as you move
displacement
a vector quantity, the shortest straight-line distance from an objects initial position to its final position, including the direction of movement
the speed equation
speed = distance / time
velocity = distance / time
avg speed equation
s = v + u / 2
acceleration equation
a = v - u / t
same as
v = u + at
constant acceleration equation
v² = u² + 2as