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Motion
IGCSE velocity and acceleration
Question | Answer |
---|---|
Units of velocity are | Metres per second, m/s |
Units of acceleration are | Metres per second squared |
The difference between speed and velocity is | Velocity has a direction. |
Average speed equals | Distance travelled divided by time taken |
Acceleration equals | Change in velocity divided by time taken |
Gradient of distance time graph is | Velocity |
Gradient of velocity time graph is | Acceleration |
Area under velocity time graph is | Distance travelled |
The Moon travels at constant speed but it is accelerating because | Its direction changes |
If it takes 4 seconds to accelerate from 12 m/s to 20 m/s the acceleration is | 2 metres per second squared |