Cambridge IGCSE Physics MCQ Quiz

A boy takes 30 minutes to cycle a distance of 8.0 km. He then walks a further distance of 2.0 km in 15 minutes. What is his average speed?

• 4.5 km/h

• 5.6 km/h

• 12 km/h

• 13 km/h

A small, light ball is dropped from the top of a tall building. Which graph shows how the speed of the ball changes with time?

• Graph A

• Graph B

• Graph C

• Graph D

Which statement about gravitational field strength is not correct?

• It changes the mass of an object.

• It is equivalent to the acceleration of free fall.

• It is measured in N/kg.

• Its magnitude is different on other planets in our Solar system.

Three liquids P, Q and R have different densities and do not mix. The liquids are placed in a measuring cylinder and allowed to settle. A small block is then dropped into the measuring cylinder and comes to rest, as shown. Which statement about the density of the block is correct?

• It is equal to the density of Q.

• It is greater than the density of P.

• It is greater than the density of R.

• It is less than the density of Q.

The diagram shows a uniform beam pivoted at its centre. A student applies two forces, F1 and F2, as shown. Which row is correct?

• 
• 
• 
• 

Which expression can be used to determine the impulse on a tennis ball?

• force × time

• time/momentum

• mass × initial velocity

• mass × acceleration

Which row shows the process by which energy in the Sun is released, the process by which it is transferred to the Earth and a way in which it is stored once it reaches the Earth?

• fission, convection, biofuel

• fusion, radiation, nuclear fuel

• fusion, convection, nuclear fuel

• fusion, radiation, biofuel

An object has a mass of 20 kg. It is taken up stairs through a height of 4.0 m. What is the increase in the store of gravitational potential energy?

• 5.0 J

• 49 J

• 80 J

• 780 J

An electrician uses a lifting machine, as shown. The lifting machine takes 4.5 s to lift the electrician a vertical height of 3.2 m. The mass of the electrician is 72 kg. The energy for the lifting machine is supplied by a 2.0 kW electric motor. What is the efficiency of the lifting machine?

• 0.026

• 0.25

• 0.50

• 0.75

Some altimeters use the change in air pressure to measure height. If the pressure is 100 kPa at sea level on a particular day, what will the pressure be at the top of an 830 m hill? (Take the density of air to be constant at 1.3 kg/m^3.)

• 1.1 kPa

• 11 kPa

• 89 kPa

• 110 kPa