Chapter 9: Motion – Multiple Choice Questions and Answers

The gradient of a distance–time graph represents:

• Acceleration

• Speed

• Displacement

• Velocity

A car travels 2000 m in 80 s. What is its average speed?

• 20 m/s

• 25 m/s

• 30 m/s

• 15 m/s

The unit of speed is:

• m

• s/m

• m/s

• m/s²

If a distance–time graph shows a horizontal line, the object is:

• Moving at constant speed

• Accelerating

• Decelerating

• Stationary

On a motorway, a car travels 1000 m in 40 s. What is its speed?

• 20 m/s

• 25 m/s

• 40 m/s

• 35 m/s

If a line on a distance–time graph is steeper, this means the speed is:

• Slower

• Constant

• Faster

• Stationary

Speed can also be calculated as:

• Speed = distance × time

• Speed = time / distance

• Speed = distance / time

• Speed = distance + time

In which scenario would a car’s average speed be different from its instantaneous speed?

• Constant speed

• Stationary

• Speeds up and slows down

• Moves in a circle

If time is in minutes, you should:

• Multiply by 100

• Add 60

• Convert to seconds

• Divide by 1000

The first 1000 m of a journey takes 50 s, and the next 1000 m takes 40 s. Average speed for 2000 m?

• 22.2 m/s

• 20.0 m/s

• 12.5 m/s

• 25.0 m/s