Everything

Question 1

What is the relationship between units for speed, distance, and time?

Answer 1

The units for speed depend on the units for the distance and the time.

Question 2

Fill in the blank: The units for speed are _______.

Answer 2

kilometres per hour, miles per hour, meters per second

Question 3

What formula is used to calculate speed?

Answer 3

Speed = distance / time

Question 4

If a car travels 250 miles in 5 hours, what are the units for calculating its speed?

Answer 4

mph

Question 5

What is mean speed?

Answer 5

The total distance travelled divided by the total time taken.

Question 6

True or False: The mean speed is the top speed in a journey.

Answer 6

False

Question 7

Why are the top speed and mean speed of a bus making a 10-mile journey different?

Answer 7

Mean speed is the total distance traveled whereas top speed is the sustained speed.

Question 8

Calculate the average speed of a cricket ball that crosses a 140 m field in 3.1 s.

Answer 8

45 m/s

Question 9

If a cricket ball crosses a 151 m field at an average speed of 45 m/s, how long will it take?

Answer 9

3.36 seconds