# Physics P2: Velocity & Distance Time Graphs

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What is velocity?
Velocity is the speed of something in a given direction
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What is speed?
The rate at which something moves
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What is speed to? (Calculation for speed)
Speed = Distance/Time
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In a distance time graph, what is the gradient showing?
Speed
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In a distance time graph, if the line is flat and horizontal, what does it mean?
The object is stationary
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In a distance time graph, if the line is going straight up or down, what does it mean?
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True or false. When the graph is not steep, it means the speed is fast
False, the steeper the graph the faster the speed is!
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What do curves represent?
Acceleration or deceleration
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How do you calculate speed from a distance time graph?
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What is accelaration?
Acclaration is how quickly the velocity is changing, or ' the rate of change of velocity per unit of time'
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What is the formula for accelaration?
Change in velocity/time taken.
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## Other cards in this set

### Card 2

What is speed?

#### Back

The rate at which something moves

### Card 3

#### Front

What is speed to? (Calculation for speed)

### Card 4

#### Front

In a distance time graph, what is the gradient showing?

### Card 5

#### Front

In a distance time graph, if the line is flat and horizontal, what does it mean?