AQA Additional Science P2 Part 1

• 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

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

• 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.