# Speed And Motion

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• Created by: Emanuelle
• Created on: 12-09-16 18:18
What two quantities are needed to calculate speed?
Speed = d ÷ t (distance ÷ time)
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What does the gradient of a distance- time graph represent?
The slope represents the increasing speed of an object.
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State the equation used to calculate acceleration
a = (V-U) ÷ T (Final speed - Initial speed ÷ time)
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What is acceleration and deceleration?
It is a measure of how quickly an object speeds up or slows down.
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What does an acceleration of -5m/s² tell you about the motion of the object?
This tells you that the object is going in reverse direction, it is decelerating and going back to it's starting point.
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## Other cards in this set

### Card 2

#### Front

What does the gradient of a distance- time graph represent?

#### Back

The slope represents the increasing speed of an object.

### Card 3

#### Front

State the equation used to calculate acceleration

### Card 4

#### Front

What is acceleration and deceleration?

### Card 5

#### Front

What does an acceleration of -5m/s² tell you about the motion of the object?