DISTANCE-TIME GRAPHS, ACCELERATION and VELOCITY-TIME GRAPHS 0.0 / 5 ? PhysicsGraphsGCSEAQA Created by: 12eyoungCreated on: 31-05-17 21:35 What is speed? How fast an object is travelling 1 of 8 What is velocity? How fast something is going with DIRECTION 2 of 8 Formula for SPEED SPEED = distance ÷ time 3 of 8 What is a gradient? In distance-time graphs, it tells you how fast an object is travelling. GRADIENT = SPEED. 4 of 8 What is acceleration? How quickly the velocity is changing. --> the change in velocity can be a CHANGE IN SPEED or CHANGE IN DIRECTION or both. 5 of 8 Formula for ACCELERATION ACCELERATION = change in velocity ÷ time 6 of 8 What is the unit for acceleration? m/s² 7 of 8 What is the unit for speed? m/s or mph or km/h 8 of 8
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