Cambridge Checkpoint Science Grade 8

A red car travels 120 km in one hour. A blue car travels 130 km in the same time. Which car has the greater average speed?

• The blue car

• The red car

Runner A takes 45 s to run 400 m. Runner B takes 48 s to run the same distance. Which runner has the greater average speed?

• Runner A

• Runner B

A bus travels a distance of 100 km in 2,5 h. Calculate its average speed. Give your answer in km/ h.

How much time has passed between the beginning and end of the jouney?

How far has the car travelled in this time? Distance mater is in km.

Calculate the car's average speed during the journey. Show your working.

A train is travelling at an average speed of 150 km/ h. How far will it travel in 2.4 hours? Show your working.

A train is travelling at an average speed of 150 km/ h.

How long will it take to travel between two stations 525 km apart? Show your working.