Question 1
Topic – 1.5.1 Effects of forces
Two forces with magnitudes F1 and F2 act on an object at right angles to each other.
What is the magnitude of the resultant force?
A) \(\sqrt{F_{1}^{2}} + F_{2}^{2}\)
B) \(\sqrt{F_{1}}+\sqrt{F_{2}}\)
C) \(\sqrt{F_{1}^{2}}+\sqrt{F_{2}^{2}}\)
D) \(\sqrt{F_{1}}+F_{2}\)
▶️Answer/Explanation
Ans: A
Question 2
Topic – 1.2 Motion
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?
A) 4.5 km/h
B) 5.6 km/h
C) 12 km/h
D) 13 km/h
▶️Answer/Explanation
Ans: D
Question 3
Topic – 1.2 Motion
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?
▶️Answer/Explanation
Ans: C
Question 4
Topic – 1.3 Mass and weight
Which statement about gravitational field strength is not correct?
A) It changes the mass of an object.
B) It is equivalent to the acceleration of free fall.
C) It is measured in N/kg.
D) Its magnitude is different on other planets in our Solar system.
▶️Answer/Explanation
Ans: A
Question 5
Topic – 1.4 Density
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?
A) It is equal to the density of Q.
B) It is greater than the density of P.
C) It is greater than the density of R.
D) It is less than the density of Q.
▶️Answer/Explanation
Ans: C
Question 6
Topic – 1.5.2 Turning effect of forces
The diagram shows a uniform beam pivoted at its centre.
A student applies two forces, F1 and F2, as shown.
Which row is correct?
▶️Answer/Explanation
Ans: D
Question 7
Topic – 1.6 Momentum
Which expression can be used to determine the impulse on a tennis ball?
A) force × time
B) \(\frac{momentum}{time}\)
C) mass × initial velocity
D) mass × acceleration
▶️Answer/Explanation
Ans: A
Question 8
Topic – 6.2.1 The Sun as a star
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?
▶️Answer/Explanation
Ans: D
Question 9
Topic – 1.7.2 Work
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?
A) 5.0 J
B) 49 J
C) 80 J
D) 780 J
▶️Answer/Explanation
Ans: D
Question 10
Topic – 1.7.4 Power
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?
A) 0.026
B) 0.25
C) 0.50
D) 0.75
▶️Answer/Explanation
Ans: B
Question 11
Topic – 1.8 Pressure
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/\(m^{3}\).)
A) 1.1 kPa
B) 11 kPa
C) 89 kPa
D) 110 kPa
▶️Answer/Explanation
Ans: C
Question 12
Topic – 2.1.1 States of matter
Water can exist in three states: solid (ice), liquid (liquid water) and gas (steam).
In which states is the motion of the water particles only vibrational?
A) liquid water and ice
B) liquid water only
C) ice only
D) steam only
▶️Answer/Explanation
Ans: C
Question 13
Topic – 2.1.3 Gases and the absolute scale of temperature
A cube has sides 2.0 m long. The cube contains a gas at a pressure of 8000 N/\(m^{2}\).
A second cube has sides 4.0 m long. This cube contains the same mass of the same gas as the first cube, at the same temperature.
What is the pressure of the gas in the second cube?
A 1000 N/\(m^{2}\)
B 4000 N/\(m^{2}\)
C 16000 N/\(m^{2}\)
D 64000 N/\(m^{2}\)
▶️Answer/Explanation
Ans: A
Question 14
Topic – 2.2.3 Melting, boiling and evaporation
Which row gives the correct name for each change of state shown?
▶️Answer/Explanation
Ans: B
Question 15
Topic – 2.2.2 Specific heat capacity
In an experiment to measure specific heat capacity, a block of aluminium is heated and its rise in temperature is measured.
The internal energy gained by the block is ΔE. The mass of the block is m. The rise in temperature of the block is ΔT.
Which expression gives the specific heat capacity of aluminium?
A) \(\frac{m}{\Delta E\Delta T}\)
B) \(\frac{m\Delta T}{\Delta E}\)
C) \(\frac{\Delta E}{m\Delta T}\)
D) \(\frac{\Delta E\Delta T}{m}\)
▶️Answer/Explanation
Ans: C
Question 16
Topic – 4.2.1 Electric charge
Which statement about the transfer of thermal energy is correct?
A) All metals conduct thermal energy equally well.
B) Convection can only occur in solids or liquids.
C) Convection occurs in liquids because hot liquid is more dense than cold liquid.
D) The radiation that transfers thermal energy is a type of electromagnetic radiation.
▶️Answer/Explanation
Ans: D
Question 17
Topic – 3.1 General properties of waves
What is the number of wavefronts per second that pass a fixed point?
A) the amplitude of the wave
B) the frequency of the wave
C) the speed of the wave
D) the wavelength of the wave
▶️Answer/Explanation
Ans: B
Question 18
Topic – 3.1 General properties of waves
An earthquake under the ocean can produce a dangerous water wave called a tsunami.
The table gives typical data for a tsunami.
A student suggests three conclusions about the data.
1. The deeper the ocean, the faster the wave.
2. The longer the wavelength, the faster the wave.
3. The faster the wave, the higher the frequency.
Which conclusions are correct?
A) 1, 2 and 3
B) 1 and 2 only
C) 1 and 3 only
D) 2 and 3 only
▶️Answer/Explanation
Ans: B
Question 19
Topic – 3.1 General properties of waves
The diagram shows what happens to wavefronts at sea when they enter a harbour.
What causes the change in the shape of the wavefronts?
A) diffraction
B) dispersion
C) reflection
D) refraction
▶️Answer/Explanation
Ans: A
Question 20
Topic – 3.2.2 Refraction of light
A ray of light passes from air into glass.
What are the angles of incidence and refraction of the ray?
▶️Answer/Explanation
Ans: A
Question 21
Topic – 3.2.3 Thin lenses
An object is placed in front of a converging lens. The lens has a focal length f.
The lens produces a real, enlarged image of the object.
In which labelled position is the object placed?
▶️Answer/Explanation
Ans: B
Question 22
Topic – 3.3 Electromagnetic spectrum.
What is the speed of electromagnetic waves in a vacuum?
A) 300 m/s
B) 300 km/s
C) 300000 km/s
D) 300000000 km/s
▶️Answer/Explanation
Ans: C
Question 23
Topic – 2.1.3 Gases and the absolute scale of temperature
The starter in an athletics race fires the starting pistol. There is a wall 60 m from the starter.
Take the speed of sound as 330 m / s.
How long after firing the pistol does the starter hear the echo of the sound from the wall?
A) 0.18 s
B) 0.36 s
C) 2.8 s
D) 5.5 s
▶️Answer/Explanation
Ans: B
Question 24
Topic – 4.3.3 Action and use of circuit components
The diagram shows the magnetic field around a conductor which is carrying a current.
Where is the strength of the field greatest?
▶️Answer/Explanation
Ans: A
Question 25
Topic – 4.2.1 Electric charge
A positive ion in a vacuum moves at a steady speed in a straight line.
There is a potential difference between the two parallel metal plates P and Q so that they are oppositely charged.
When the positive ion enters the region between plates P and Q, it changes direction as shown.
The diagram shows the view from above the ion.
Which diagram shows the direction of the electric field between the plates?
▶️Answer/Explanation
Ans: C
Question 26
Topic – 2.2.2 Specific heat capacity
In the circuit shown, the voltmeter reads 2.0 V. A charge of 5.0 C passes through the resistor in a certain time.
How much energy is supplied to the resistor in this time?
A) 0.40 J
B) 2.5 J
C) 10 J
D) 20 J
▶️Answer/Explanation
Ans: C
Question 27
Topic – 3.2.3 Thin lenses
Which diagram shows the current–voltage (I–V) graph for a filament lamp?
▶️Answer/Explanation
Ans: A
Question 28
Topic – 4.2.1 Electric charge
The diagram shows an electrical circuit.
Which statement is correct?
A) The current reading on ammeter A1 is the highest.
B) The current reading on ammeter A2 is the highest.
C) The current reading on ammeter A3 is the highest.
D) The current readings on all three ammeters A1, A2 and A3 are the same.
▶️Answer/Explanation
Ans: A
Question 29
Topic – 4.3.2 Series and parallel circuits
The diagram shows an arrangement of resistors in series and parallel.
Which equation is used to calculate the combined resistance of the resistors?
A) \(R_{1}+\frac{R_{2}+R_{3}}{R_{2}\times R_{3}}\)
B) \(R_{1}+\frac{R_{2}\times R_{3}}{R_{2}+ R_{3}}\)
C) \(R_{1}+\frac{1}{R_{2}+ R_{3}}\)
D) \(R_{1}\times \frac{R_{2}+ R_{3}}{R_{2}\times R_{3}}\)
▶️Answer/Explanation
Ans: B
Question 30
Topic – 4.2.5 Electrical energy and electrical power
An electrical engineer has made a pair of components P and Q.
The resistance of P decreases as the temperature rises. The resistance of Q increases as the temperature rises.
The total resistance of P and Q in series remains constant when the temperature changes. The two components are connected in series with a power source supplying a constant current.
Which statement is correct?
A) If a temperature change causes the potential difference (p.d.) across P to double, the p.d. across Q will always halve.
B) The difference between the p.d. across P and the p.d. across Q does not change with temperature.
C) The p.d. across component P increases as the temperature rises.
D) The sum of the p.d. across P and the p.d. across Q does not change with temperature.
▶️Answer/Explanation
Ans: D
Question 31
Topic – 4.5.4 Force on a current-carrying conductor
The diagram shows a wire XY moving upwards in a magnetic field.
A current is induced in the wire.
The current-carrying wire XY experiences a force because of its interaction with the magnetic field.
Which row gives the direction of the induced current and the direction of the force experienced by the wire XY?
▶️Answer/Explanation
Ans: A
Question 32
Topic – 4.5.1 Electromagnetic induction
Diagram 1 shows a magnet being pushed into a coil that is connected to a centre-zero sensitive voltmeter.
Which row shows the directions of the pointer on the voltmeter when the magnet is as shown in diagrams 2 and 3?
▶️Answer/Explanation
Ans: C
Question 33
Topic – 4.5.3 Magnetic effect of a current
What is the purpose of the brushes and the split-ring commutator in a d.c. motor?
A) to change the size of the current
B) to keep the coil turning in the same direction
C) to keep the speed of rotation constant
D) to make the output an alternating voltage
▶️Answer/Explanation
Ans: B
Question 34
Topic – 4.5.1 Electromagnetic induction
The diagram shows β-particles being directed between the poles of a magnet.
In which direction will the particles be deflected?
A) into the page
B) out of the page
C) towards the bottom of the page
D) towards the top of the page
▶️Answer/Explanation
Ans: B
Question 35
Topic – 5.2.2 The three types of nuclear emission
An α-particle and a β-particle have the same kinetic energy.
Why does the α-particle have a larger ionising effect than the β-particle as it passes through air?
A) The α-particle has a larger charge and a larger velocity so is closer to an air particle for ashorter time.
B The α-particle has a larger charge and a smaller velocity so is closer to an air particle for alonger time.
C The α-particle has a smaller charge and a larger velocity so is closer to an air particle for ashorter time.
D The α-particle has a smaller charge and a smaller velocity so is closer to an air particle for alonger time.
▶️Answer/Explanation
Ans: B
Question 36
Topic – 5.2.1 Detection of radioactivity
A student is carrying out an experiment to measure the radiation from a radioactive source.
He uses a radiation detector and records the total counts in 5-minute intervals.
He does this three times with the source present and three times with the source absent. Here are his results.
What is the average corrected count rate for the source?
A) 5 counts / minute
B) 9 counts / minute
C) 25 counts / minute
D) 45 counts / minute
▶️Answer/Explanation
Ans: B
Question 37
Topic – 5.2.4 Half-life
The count rate measured near a radioactive source drops from 542 counts per minute to94 counts per minute in 12 hours. The background count remains constant at 30 counts perminute.
What is the half-life of the source?
A) 2 hours
B) 3 hours
C) 4 hours
D) 8 hours
▶️Answer/Explanation
Ans: C
Question 38
Topic – 6.2.2 Stars
What happens when a protostar becomes a stable star?
A) Most of the hydrogen is converted to helium and the protostar expands.
B) The inward force due to gravity is balanced by an outward force due to the high temperature.
C) The protostar collapses due to gravity and the temperature increases.
D) The protostar runs out of hydrogen as fuel for the nuclear reaction.
▶️Answer/Explanation
Ans: B
Question 39
Topic – 6.1.2 The Solar System
The table gives information about some of the planets in our Solar System.
Which statement about these planets is correct?
A) As the mass compared with the Earth increases, the average density increases.
B) As the mass compared with the Earth increases, the gravitational field strength increases.
C) As the average density increases, the gravitational field strength decreases.
D) The average density is directly proportional to the gravitational field strength.
▶️Answer/Explanation
Ans: B
Question 40
Topic – 6.2.3 The Universe
Which quantity is an estimate of the age of the Universe?
A) \(H_{0}\)
B) d × \(H_{0}\)
C) \(\frac{1}{H_{0}}\)
D) v × \(H_{0}\)
▶️Answer/Explanation
Ans: C