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7K e
Science 7
| Question | Answer |
|---|---|
| braking distance | The distance a car travels while the brakes are trying to stop it |
| distance/time graph | A graph that shows how far and how fast something travels during a journey |
| kilometres per hour (km/h) | Units for speed when the distance is measured in kilometres and the time is measured in hours |
| metres per second (m/s) | Units for speed when the distance is measured in metres and the time is measured in seconds |
| mile per hour (mph) | Units for speed when the distance is measured in miles and the time is measured in hours |
| speed | How fast something is moving. Often measured in metres per second(m/s) |
| stopping distance | The distance a car moves while it is stopping. It is equal to the thinking distance and the braking distance added together |
| thinking distance | The distance a car travels while the driver is deciding to press the brake pedal |