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13 Cards in this Set
- Front
- Back
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What is the difference between speed and velocity? |
Speed is how fast you are going whereas velocity is how fast you are going in a specific direction (vector quantity). |
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What is the formula linking speed, distance and time? |
speed = distance/time |
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What is acceleration? |
How quickly velocity is changing (in speed or direction) |
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What is the formula for acceleration? |
Acceleration = Change in velocity/ time taken |
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What represents speed on a distance time graph? |
The gradient |
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What are flat sections on a D-T graph? |
Where the vehicle is stationary. |
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What do downwards lines mean on a D-T graph? |
The vehicle is moving backwards. |
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How do you calculate speed from a D-T graph? |
Speed=gradient=vertical/horizontal |
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What are the units for speed? |
m/s |
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What represents acceleration on a V-T graph? |
The gradient. |
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What do flat sections represent on a V-T graph? |
Constant speed |
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How do you work out the distance travelled using a V-T graph? |
The area under the graph = distance travelled. |
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What type of quantity are forces? |
Vector quantities. |
