# P2 1 - Motion

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- Created by: KatyHousden13
- Created on: 02-03-15 16:37

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- Motion P2 1
- Distance-time graphs P2 1.1
- Key Points:
- The distance-time graph for any object that is 1) stationary is a horizontal line 2)moving at a constant speed is a straight line that slopes upwards.
- The gradient of a distance-time graph for an object represents the object's speed.
- Speed in metres per second,m/s = distance travelled in metres,m --------------- time taken in seconds,s

- The gradient of a distance-time graph for an object represents the object's speed.

- The distance-time graph for any object that is 1) stationary is a horizontal line 2)moving at a constant speed is a straight line that slopes upwards.
- distance ---------------- speed x time

- Key Points:
- Velocity an d acceleration P2 1.2
- Key Points:
- Velocity is speed in a given direction
- Acceleration is changeof velocityper second. The unit of acceleration is the metre per second squared (m/s^2)
- Acceleration = changeof velocity divided by time taken.
- Deceleration is the changeof velocity per second when an object slows down.

- Acceleration = changeof velocity divided by time taken.

- Acceleration is changeof velocityper second. The unit of acceleration is the metre per second squared (m/s^2)

- Velocity is speed in a given direction
- a = v-u ---------t

- Key Points:

- Distance-time graphs P2 1.1
- The distance-time graph for any object that is 1) stationary is a horizontal line 2)moving at a constant speed is a straight line that slopes upwards.
- The gradient of a distance-time graph for an object represents the object's speed.
- Speed in metres per second,m/s = distance travelled in metres,m --------------- time taken in seconds,s

- The gradient of a distance-time graph for an object represents the object's speed.

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