P2.1.2 Velocity and Acceleration 0.0 / 5 ? PhysicsMotionGCSEAQA Created by: MaddiCreated on: 04-05-14 13:52 What is the difference between speed and velocity? Velocity is speed in a given direction. 1 of 7 What are scalars? Scalars are quantities that are fully described by a numerical value alone. 2 of 7 What are vectors? Vectors are quantities that are fully described by both a numerical value and a direction. 3 of 7 What is acceleration? Acceleration is the change in velocity in a second. 4 of 7 What is the unit of acceleration? m/s 5 of 7 How can we calculate the acceleration of an object? Acceleration = change in velocity - time taken 6 of 7 What is deceleration? Deceleration is the change of velocity per second when an object slows down. 7 of 7
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