P2 1: Motion

Distance time graphs

- shows the motion of a body from the starting point against the time taken.
- the slope line represents the speed

- The D,S, T triangle. Speed = distance/time

- Speed is in m/s , metres per second
- Distance is Always in metres
- Time is Always in seconds

- Steeper the line = Greater the speed

- When the line is straight = Stationary body

Velocity time graphs

- Velocity is Speed in a given Direction.
- the slope line represents the acceleration

- The V, A, T triangle , remember the change in velocity so highest - lowest

- Accelertation is in m/s squared

- When the line is straight = Constant speed
- Sloping line = Acceleration
- When the line is going the other way, negative = Deceleration
- the Area underneath is the distance travelled.