# Motion

## KS3 - Motion recap

speed, motion graphs,

### Links for learning

Websites Videos Games Quizzes

## Key Words

**Distance** - how far an object has moved (a scalar quantity).

**Displacement** - measures the distance and direction in a straight line (a vector quantity).

**Vectors** - have a magnitude and direction.

**Scalar** - only have magnitude and no direction.

**Speed/Velocity** - how fast an object is going (speed is a scalar, velocity is a vector).

**Typical speeds** for everyday objects:

walking - 1.5 m/s | car - 25 m/s |

running - 3 m/s | train - 55 m/s |

cycling - 6 m/s | plane - 250 m/s |

**Acceleration** - how quickly you're speeding up.

**Uniform Acceleration** - constant acceleration.

**Distance-Time Graph** - if an object moves in a straight line, its distance travelled can be plotted on a distance-time graph.

**Velocity-Time Graph** - when a object's velocity changes it can be plotted in on a velocity-time graph.

**Friction** - slow things down. It always acts in the opposite direction to the movement.

**Drag** - Increases as speed increases.

**Terminal Velocity** - Maximum speed an object will fall at. Maximum speed depends on the shape and area of an object.

**Also see** Forces, Force & Motion

## EQUATION Distance using speed & time

## EQUATION Acceleration

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How to print and use flash cards

### Acceleration Worksheet

## Links for Learning

Websites Videos Games Quizzes

Bitesize: Describing motion.

Bitesize: Distance, speed time.

Bitesize: Distance-time graphs.

Bitesize: Velocity-time graphs.

Bitesize: Describing motion test.

Bitesize: Distance, speed time quiz.

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