Physical World & Measuring Speed and Acceleration

Vocabulary flashcards about speed, distance, time, and acceleration.

Meters (m)

Distance in mathematical questions must be converted to this unit.

Speed

The formula to calculate this is: distance / time.

Time

The formula to calculate this is: distance / speed.

Distance

The formula to calculate this is: speed * time.

Meters per second (m/s or ms⁻¹)

Science unit for speed.

Deceleration

The word used to describe a negative acceleration.

Acceleration

The rate of change in velocity.

Velocity

This tells you the speed at which it is traveling and the direction in which it is traveling.

m/s² or ms⁻²

The unit for acceleration.

Acceleration

Formula: (final speed - first speed) / time taken for the change in speed.