# Physics P3 Speed

Created by AP.

HideShow resource information

- Created by: A.P
- Created on: 19-01-13 10:50

View mindmap

- Speed
- Measuring Speed
- The formula for speed is...
- average speed = distance / time
- We write average speed because the speed of a car changes during a journey

- average speed = distance / time
- The speed of a car at a certain point in time is called instantaneous speed.
- distance travelled = average speed x time
- distance travelled = [(u+v)t] / 2

- distance travelled = average speed x time
- Increasing the speed means increasing the distance travelled in the same time. Increasing the speed reduces the time needed to cover the same distance.

- The formula for speed is...
- Distance-Time Graphs
- Distance-time graphs allow a collection of data to be shown. It is easier to interpret data when they are plotted on a graph than when they are listed in a results table.
- The gradient of a distance-time graph tells you about the speed of the object. A higher speed means a steeper gradient.
- If the gradient increases then this shows an increase in the speed of the object.

- A straight line indicates that the speed is changing.
- A curved line shows that the speed is changing.

- gradient = AC/BC = (20-10)/(5-0) = 2
- Untitled
- Untitled

- Measuring Speed

## Comments

No comments have yet been made