Form 2 Chapter 9: Speed and Acceleration

The correct equation to calculate speed is ... ... ... .

• distance / time

• time / distance

• distance x time

• distance / time²

Shona cycles at an average speed of 8 km/h. How far has she traveled if she cycles for 4 hours?

• 25 km

• 32 km

• 43 km

• 55 km

Find the speed of a truck that travels 75 km in 2.5 hours.

• 187.5 km/h

• 30 km/h

• 300 km/h

• 200 km/h

It took 3.5 hours for a train to travel the distance between two cities at a speed of 120 km/h. How many km lie between the two cities?

• 34 km

• 420 km

• 120 km

• 360 km

A car accelerates from a standstill to 70 m/s in 10 seconds. What is the acceleration?

• 0.7 m/s²

• 7 m/s²

• 14 m/s²

• none of the above

A car accelerates from 15 m/s to 60 m/s in 30 seconds. What is its acceleration?

• 2 m/s²

• 3 m/s²

• 1.5 m/s²

• 0.75 m/s²

A dog runs with an initial speed of 7.5 m/s on a waxed floor. It slides to a stop in 15 seconds. What is the acceleration?

• 0.5 m/s²

• -7.5 m/s²

• -0.5 m/s²

• -0.5 m//h²

A drag racer accelerated from rest (0 m/s) to 195 m/s in 6.5 seconds. What was the acceleration?

• 10 m/s²

• 30 m/s²

• -3 m/s²

• 26 m/s²

A snail can move approximately 0.30 meters per minute. How many meters can the snail cover in 15 minutes?

• 4.5 m

• 50 m

• 0.02 m

• 14 m

A ball rolls 144 cm in 12 seconds. What is its speed in meters per second?

• 12 cm/s

• 12 m/s

• 1.2 m/s

• 0.12 m/s