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

• 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

Acceleration

Definition: How quickly your velocity is changing.

Acceleration= Change in velocity / Time taken

Velocity

Definition:  speed in a certain direction

Distance=velocity x time

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Velocity Time Graphs

• 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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