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12.05 Units of speed

Interactive practice questions

When writing units for speed, the time component:

Must always be the first component of the unit (i.e. seconds/metre, hours/km), since speed is derived from the formula $\text{Speed}\times\text{Distance}=\text{Time}$Speed×Distance=Time.

A

Can be either the first or second component of the unit.

B

Must always be the second component of the unit (i.e. km/hour, or m/second), since speed is calculated using the formula $\text{Speed}=\frac{\text{Distance}}{\text{Time}}$Speed=DistanceTime.

C
Easy
< 1min

What unit is most appropriate for measuring the speed of a person while running?

Easy
< 1min

What unit is most appropriate for measuring the speed of a slug?

Easy
< 1min

What unit is the most appropriate for measuring the speed of a motorcyclist?

Easy
< 1min
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Outcomes

ACMEM085

identify the appropriate units for different activities, such as walking, running, swimming and flying

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