AQA Additional Science P2 Part 1

  1. D-T Graphs
  2. Velocity and Acceleration
  3. V-T Graphs
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Distance Time Graphs

  • Gradient= speed
  • Flat sections means that the objects are stationary. 
  • The steeper the graph the faster it it going
  • Downhill sections means its going back towards its starting point.
  • Curves represent acceleration or deceleration.
  • A steepening curve means its speeding up.
  • A levelling off curve means its slowing down.  

Speed= Distance / Time  

Distance=Speed x Time

Time= Distance / Speed

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Acceleration & Velocity


Definition: How quickly your velocity is changing.

Acceleration= Change in velocity / Time taken


Definition:  speed in a certain direction

Distance=velocity x time

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Velocity Time Graphs

  • Gradient= acceleration
  • Flat sections represent steady speed.
  • The steeper the graph, the greater the acceleration or deceleration.
  • Uphill- are acceleration Down- hills 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. 
  • The area under the line on the velocity-time graph represents the distance travelled in a given time.
  • The bigger the area, the greater the distance travelled.
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