IGCSE Physics MCQs 02 - Describing Motion

The graph shows how the speed of an object changes with time.

How far does the object travel in 10 seconds?

• 8 m

• 10 m

• 40 m

• 80 m

A car travels at an average speed of 60 km/h for 15 minutes.

How far does the car travel in 15 minutes?

• 4.0 km

• 15 km

• 240 km

• 900 km

The graph shows the motion of a car for a five-second period.

Which answer is correct?

• The car is at rest at: 0.0 s;

  The car is moving at a constant speed at: 2.0 s

• The car is at rest at: 0.0 s;

  The car is moving at a constant speed at: 4.0 s

• The car is at rest at: 4.0 s;

  The car is moving at a constant speed at: 0.0 s

• The car is at rest at: 4.0 s;

  The car is moving at a constant speed at: 2.0 s

An object begins to fall close to the Earth's surface. Air resistance can be ignored. Which statement about the object's acceleration is correct?

• The acceleration is constant.

• The acceleration decreases as the body falls.

• The acceleration increases as the body falls.

• The acceleration is zero.

The diagrams below are distance-time graphs for four bodies.

Which body is moving with an increasing speed?

• 
• 
• 
• 

A runner runs 300 m at an average speed of 3.0 m/s. She then runs another 300 m at an average speed of 6.0 m/s.

What is her average speed for the total distance of 600 m?

• 2.0 m/s

• 4.0 m/s

• 4.5 m/s

• 8.0 m/s

The graph shows how the speed of an object varies with time. At which point on the graph is the greatest distance travelled per second?

• A

• B

• C

• D

An athlete runs at a speed of 8 m/s for 10 s, and then at a speed of 6 m/s for 12 s.

Which calculation gives the average speed of the athlete in m/s?

• $\frac{8\ +\ 6}{2}$

• $\frac{\left(8\cdot10\right)+\left(6\cdot12\right)}{22}$

• $\frac{\left(8\ \div\ 10\right)+\left(6\ \div\ 12\right)}{22}$

• $\frac{\left(10\ \div\ 8\right)+\left(12\div6\right)}{22}$

A girl goes for a ride on her bicycle.

The diagram shows how her speed changes with time for part of her journey.

In which labelled section is she moving with constant speed?

• A

• B

• C

• D

A boy runs 400 m at an average speed of 4.0 m/s.

He runs the first 200 m in 40 s.

How long does he take to run the second 200 m?

• 60 s

• 66.7 s

• 80 s

• 140 s