# Speed, velocity and acceleration

Flashcards by Yas Payne, updated more than 1 year ago
 Created by Yas Payne over 5 years ago
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### Description

GCSE Physics (Forces and Movement) Flashcards on Speed, velocity and acceleration, created by Yas Payne on 01/05/2016.

## Resource summary

 Question Answer Acceleration The rate of change in speed (or velocity), measured in metres per second squared. Acceleration = change of velocity ÷ time taken. Deceleration Slowing down or negative acceleration, eg the car slowed down with a deceleration of 2ms^-2. Displacement Quantity describing the distance from the start of the journey to the end in a straight line with a described direction, eg the hiker ended up at the hostel 50km due north of his original position Force A push or a pull. The unit of force is the newton (N). Magnitude The magnitude tells us the size of the vector. Momentum A quantity relating to a moving object that is calculated by multiplying its mass by its velocity. Stationary Not moving. Velocity The speed of an object in a particular direction.

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