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Question 1 of 6
1 of 6
Match the key words or phrases to their definitions.
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the average distance travelled every second
the speed of an object at a particular moment of time
the size of a quantity
a quantity that has only magnitude (not direction)
the speed of one object compared to the speed of another object
average speed
instantaneous speed
magnitude
scalar
relative speed
Speed is a scalar quantity as it does not take into account the direction of travel; it only has a magnitude. Average values take into account a range of values but instantaneous values take only one into account. Relative is used for comparisons.