Combining speeds
I can combine compound measures, calculating overall speed.
Combining speeds
I can combine compound measures, calculating overall speed.
Lesson details
Key learning points
- Two speeds can be combined to give an overall average speed.
- Average speed is the total distance travelled divided by the total time taken.
Common misconception
The average speed is found by adding the speeds and dividing by how many average speeds are given.
The common misconception is calculating an average of an average. Show how the answers when calculating the average of the average speeds is not the same as calculating the average speed using the total distance and total time of the average speeds.
Keywords
Speed - Speed is the rate at which something is moving. It is measured as the distance travelled per unit of time.
Licence
This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
Video
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Starter quiz
6 Questions
5
8
$$\frac{2}{3}$$
$$\frac{3}{4}$$
$$\frac{5}{7}$$