Speed Distance and Velocity
- Created by: antoniaewhitley
- Created on: 25-05-14 13:50
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- Speed, Distance and Velocity
- Distance- Time Graphs
- Gradient= Vertical ___________ Horizontal
- Gradient= Speed
- Flat sections are where it's stationary
- The steeper the gradient, the faster it's going
- "Downhill" sections mean it's coming back towards starting point
- Curves represent acceleration or deceleration
- A steepening curve means it's speeding up (increasing gradient)- accelerating
- A levelling-off curve means it's slowing down (decreasing gradient)- decelerating
- Displacement-Time Graphs are the same but the gradient tells you the velocity
- Displacement
- Distances can be referred to as positive or negative
- An object can be going in one direction or the opposite direction
- When the direction is given with a particular indication of direction it's called displacement
- Speed compared to Velocity
- The speed is just how fast it's going- the direction isn't important
- Velocity is sometimes a more useful measure of motion, because it describes both speed and direction
- Instantaneous velocity is its speed and direction at a given moment in time
- You can also have negative velocities
- If two objects are heading in opposite directions, you can say that one has a positive velocity and the other has a negative velocity
- Distance- Time Graphs
- Instantaneous velocity is its speed and direction at a given moment in time
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