Speed
Speed measures how much the distance changes, every second.
It’s not in any specific direction, so it’s a scalar quantity.
Example
Section titled “Example”- We cycle 18km in 1 hour, so our speed is:
- Or, if we walk
in , our speed is:
Where:
is the distance, measured in metres, is the speed, measured in metres per second, ( ) is the time, measured in seconds,
A van drives 200m in 10s. Calculate the speed.
Section titled “A van drives 200m in 10s. Calculate the speed.”- Answer:
A car drives 75m in 5s. Calculate the speed.
Section titled “A car drives 75m in 5s. Calculate the speed.”- Answer:
A bike drives 10m in 20s. Calculate the speed.
Section titled “A bike drives 10m in 20s. Calculate the speed.”- Answer:
A truck drives 240m in 8s. Calculate the speed.
Section titled “A truck drives 240m in 8s. Calculate the speed.”- Answer:
A car drives 300m in 12s. Calculate the speed.
Section titled “A car drives 300m in 12s. Calculate the speed.”- Answer:
A van drives 600m in 15s. Calculate the speed.
Section titled “A van drives 600m in 15s. Calculate the speed.”- Answer:
A person cycles 100km in 4h. Calculate their average speed.
Section titled “A person cycles 100km in 4h. Calculate their average speed.”- Answer: