physics (Speed, Displacement, Velocity)
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8 Terms
What is the si unit of time
the si unit of time is the second(s)
what is the si unit of distance
the si unit of distance is the metre(m)
what is the def of speed
speed is the rate of change of distance with respect to time
what is the def for constant speed
an object has a constant speed if it neither slows up or slows down, or more precisely an object moves with constant speed if its average speed is always the same.
what is the def of displacement
displacement is distance in a given direction
what is the def for velocity
velocity is the rate of change of displacement with respect to time.
what is the def for constant velocity
if an object moves in a straight line and does not speed up or slow down, it has a constant velocity
what is the way of measuring velocity in the lab
The linear air track