Speed

Question 1

What is speed?

Answer 1

Speed is a measure of how fast something is moving.

Question 2

What is the formula used to calculate the speed of an object? Give units

Answer 2

steady speed (m/s) = distance (m) / time(s)

Question 3

Practice Question: A cricket ball travels 140m in 3.1s. What is the average speed of the ball? Give units!

Answer 3

Average speed = distance moved/time taken
Average speed = 140/3.1 = 45.1m/s

Question 4

What is the difference between velocity and speed?

Answer 4

Velocity is how fast something moves and its direction
Speed is how fast something moves