509316
Description
Mind Map by sian.allison, updated more than 1 year ago
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Created by sian.allison
almost 11 years ago
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Velocity/Acceleration and Distance Time Graphs
- Speed and Velocity are both how fast your going
- Both measured in m/s (mph)
- Speed is how fast you are going
with no regard to direction
- speed = distance / time
- speed = distance / time
- Velocity must also have the
direction specified (e.g.
30mph north)
- Both measured in m/s (mph)
- Distance Time Graph
- The gradient tells you
how fast your object is
travelling. This is
because the gradient is
the change in the
distance divided by the
change in time
- Important notes
- Gradient = Speed
- Gradient = Change in
distance / change in time
- Gradient = Change in
distance / change in time
- Flat sections are where its stationary or stopped
- Straight uphill or downhill sections mean it is travelling at a steady speed
- The steeper the graph the faster its going
- Downhill sections mean its going
back toward its starting point
- Curves represent acceleration
or deceleration
- A steepening curve means its speeding up (increasing gradient)
- A levelling off curve means its slowing down (decreasing gradient)
- Gradient = Speed
- Calculating speed from a distance time graph
- Speed = Gradient = vertical axis / horizontal axis
- Speed = Gradient = vertical axis / horizontal axis
- The gradient tells you
how fast your object is
travelling. This is
because the gradient is
the change in the
distance divided by the
change in time
- Acceleration is how quickly velocity is changing
- This can be a change in speed or direction
- Acceleration = Change in velocity / Time taken
- Formula Triangle
- Change in speed would be the change in velocity some times shown as (v-u)
- v= final velocity
- u=initial velocity
- v= final velocity
- Change in speed would be the change in velocity some times shown as (v-u)
- This can be a change in speed or direction
- Velocity Time graphs
- Important Notes
- Gradient = Acceleration
- Flat sections represent steady speed
- The steeper the graph the greater the acceleration or deceleration
- Uphill sections are acceleration
- Downhill sections are deceleration
- The area under any section of the graph is equal to the distance travelled in that time interval
- A curve means changing acceleration
- Gradient = Acceleration
- Acceleration = Gradient = vertical change / horizontal change
- Distance travelled in any time interval is equal to the area under the graph
- Important Notes
Media attachments
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