2019 Physics WAEC SSCE (School Candidates) May/June

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Physics 1 - Objective Test Questions

The time rate of increase in velocity is called
1. Force
2. Momentum
3. Acceleration
4. Speed
Which of the following quantities is a vector?
1. volume
2. momentum
3. energy
4. speed
In an clastic collision, momentum is conserved as well as
1. Velocity
2. Kinetic energy
3. Potential energy
4. Speed
The induced current in a coil always flows in a direction So as to oppose the change that causes it. This statement is known as
1. Coulomb’s law.
2. Lenz's law.
3. Faraday's law.
4. Ampere's law.
Which of the following instruments can be used to compare the magnitudes of charges on two given bodies?
1. Electrophorus.
2. Ebonite rod.
3. Gold-leaf electroscope.
4. Proof planes.
A body of mass 2 kg is released from a point 100 m above the ground. Calculate its kinetic energy 80 m from the point of release.
1. 1600 J
2. 900 J
3. 600 J
4. 200 J
Which of the following waves is not mechanical?
1. Waves in pipes
2. Water waves
3. Radio waves
4. Sound waves
A loaded spring is set in simple harmonic motion. The force that tends to restore the load to its equilibrium position is
1. adhesive.
2. elastic.
3. frictional.
4. gravitational.
Which of the following cases cannot produce total internal reflection? A light ray travelling from
1. glass to water.
2. kerosene to air.
3. air to water.
4. water to ice.
The vacuum in a thermo flask reduces heat loss resulting from
1. radiation only.
2. conduction and convection only.
3. radiation and convection only.
4. conduction only
The diagram above represents an experimental set- up for verifying
1. lens formula.
2. refraction laws.
3. reflection laws.
4. mirror formula.
Which of the following statements about a moving object is correct?
1. When accelerating, the resultant force acting on it must be equal to zero.
2. There must always be a non-zero resultant force acting on it.
3. At a steady velocity, the resultant force acting on it must be equal to zero.
4. At a steady velocity, the air resistance must be equal to zero.
If the efficiency of a transformer is 100%, which of the following equations would be correct?
1. $N_{p}$ $E_{p}$ - $N_{s}$ $E_{s}$
2. $N_{s}$ $I_{p}$ - $N_{p}$ $I_{s}$
3. $N_{s}$ $I_{s}$ - $N_{p}$ $I_{p}$
4. $I_{p}$ $E_{s}$ - $I_{s}$ $E_{p}$
A freshly demagnetized bar magnet is placed in the East-West direction to ensure that
1. the molecular magnets remain randomly arranged.
2. the molecular magnets are properly aligned.
3. It is affected by the earth's magnetic field.
4. the magnetic domains are within the earth’s field.
Which of the following graphs of a charge Q against potential difference V across capacitor Is correct?
1. £
2. £
3. £
4. £
A small amount of air is introduced into the vacuum above the mercury in a mercury barometer tube. The mercury level goes down because the air molecules
1. heat the mercury and make it to expand.
2. increase the pressure above the mercury.
3. cool the mercury and make it to contract.
4. decrease the pressure above the mercury.
Calculate the quantity of heat needed to change the temperature of 60 g of ice at 0 °C to 80°C. Specie latent heat of fusion of ice =3.36 x $10^{5}$ $10^{5}$ J $kg^{1}$ $kg^{1}$ , specific heat capacity of water = 4.2 x $10^{2}$ $10^{2}$ J $kg^{1}$ $kg^{1}$ $k^{1}$ $k^{1}$ ]
1. 4.80 kJ
2. 20.16kJ
3. 40.32 kJ
4. 22.17 kJ
The wire of a platinum resistance thermometer has a resistance of 3.5 Ω at 0°C and 10.5 Ω at 100°C. Calculate the temperature of the wire when its resistance is 7.5 Ω
1. 78°C
2. 25°C
3. 36°C
4. 57°C
A transverse pulse of frequency 9 Hz travels 4.5 m in 0.6 s. Calculate the wavelength of the pulse.
1. 33.3 m
2. 0.30 m
3. 0.83 m
4. 1.20 m
In which of the following media is speed of sound the least?
1. Air
2. Brass
3. Water
4. Wood
Which of the following characteristics of waves can a ripple tank be used to demonstrate? I. Reflection II. Refraction III. Diffraction
1. I, II and Ill
2. II and III only
3. I and III only
4. I and II only
Which of the following graphs gives the correct relationship between energy and mass when mass is converted to energy.
1. £
2. £
3. £
4. £
An 800 kg car moving at 80 km $hr^{-}1$ $hr^{-}1$ m hr collides with a 1200 kg car moving at 40 km $hr^{-}1$ $hr^{-}1$ in the same direction. If the cars stick together, calculate their common velocity.
1. 60 km $hr^{-}1$
2. $ km $hr^{-}1$
3. 40 km $hr^{-}1$
4. 56 km $hr^{-}1$
The mass of a load is doubled while the force acting on it is halved. The resulting acceleration of the load is
1. quadrupled.
2. quartered.
3. halved.
4. doubled.
The maximum and minimum thermometer reads the
1. maximum temperature during the day and the minimum temperature at night at all times.
2. maximum temperature at night and minimum temperature during the day from the last reset.
3. maximum temperature at night and minimum temperature during the day at all times.
4. maximum temperature during the day and minimum temperature at night from the last reset.
An a.c. generator can be converted to a d.c. generator by replacing the
1. commutator with an armature.
2. armature with a commutator.
3. commutator with slip rings.
4. slip rings with a commutator.
Which of the following statements is the correct reason for using soft iron in making the armature of an electric bell?
1. It is a diamagnetic material.
2. It loses its magnetism readily.
3. It is not easily magnetized.
4. It retains its magnetism for a long time.
The diagram above illustrates a meter bridge circuit under balanced condition. Determine the value of x.
1. 71.4 cm
2. 10.0 cm
3. 28.6 cm
4. 57.2 cm
Which of the following devices is used for storing electric charges?
1. Transformer
2. Ammeter
3. Potentiometer
4. Capacitor
## Determine the angular speed of the electron.
1. 3.28 x $10^{16}$ rad $s^{-}1$
2. 8.55 x $10^{3}$ rad $s^{-}1$
3. 9.11 x $10^{13}$ rad $s^{-}1$
4. 5.22 x $10^{15}$ rad $s^{-}1$
Calculate the centripetal force acting on the electron. |
1. 7.7 x $10^{-17}$ N
2. 6.0 x $10^{-8}$ N
3. 3.0 x $10^{-14}$ N
4. 1.3 x $10^{-26}$ N
A device consumes 100 W of power when connected to a 120 V source. Calculate its resistance.
1. 1.2.Ω
2. 12,000.0.Ω
3. 20.0.Ω
4. 144.0.Ω
Which property of a wave remains constant when the wave travels from one medium into another?
1. Amplitude
2. Wavelength
3. Velocity
4. Frequency
The anomalous expansion of water occurs in the range
1. 0°C to 100°C.
2. 0°C to 4°C.
3. 4°C to 100°C.
4. -4°C to 0°C.
A ray of light travelling from a rectangular glass block of refractive index 1.5 into air strikes the Block at an angle of incidence of 30°. Calculate its angle of refraction.
1. 48.6°
2. 19.5°
3. 20.0°
4. 45.0°
A rectangular piece of iron measuring 4 cm by 3 cm at 20°C is heated until its temperature increases by 100°C. Calculate the new area of the metal. [Linear expansivity of iron is 1.2 x $10^{-5}$ $10^{-5}$ $K^{-1}$ $K^{-1}$ ]
1. 12.0144 $cm^{2}$
2. 12.0346 $cm^{2}$
3. 12.0288 $cm^{2}$
4. 12.0173 $cm^{2}$
Two bodies of masses 3.0 kg and 2.0 kg are separated by a distance of 50 cm. Calculate the force of attraction between them. [G = 6.67 x $10^{-11}$ $10^{-11}$ $Nm^{2}$ $Nm^{2}$ $kg^{-2}$ $kg^{-2}$ ]
1. 1.6 x $10^{-9}$ N
2. 1.3 x $10^{3}$ N
3. 2.3 x $10^{3}$ N
4. 5.0 x 10 N
The diagram illustrates an object moving in a circular path at constant speed. Which of the arrows indicates the direction of linear velocity?
1. Z
2. X
3. Y
4. W
Which of the following thermometers is used to measure the temperature of the human body?
1. Thermocouple.
2. Alcohol-in-glass thermometer.
3. Gas thermometer.
4. Platinum resistant thermometer.
In the diagram above, the time taken to trace a wave between P and Q is
1. 2 periods.
2. 1 period.
3. 1 ${\tfrac {1}{2}}$ periods.
4. 1 ${\tfrac {1}{4}}$ periods.
Which of the following materials does not serve as a safety device in electrical circuits?
1. Connecting wires
2. Earth wire
3. Fuse
4. Switch
Which of the following liquids has the highest surface tension?
1. Soapy water
2. Cold water
3. Hot water
4. Oily water
The nucleon and proton numbers of a neutral atom of an element are 238 and 92 respectively. Determine the number of neutrons in the atom.
1. 119
2. 330
3. 165
4. 146
An instrument used to measure relative humidity is the
1. hygrometer.
2. hydrometer.
3. pyrometer.
4. manometer.
The area under a velocity-time graph represents
1. speed.
2. acceleration.
3. moment.
4. distance.
Which of the following statements about a neutral atom is correct? The
1. core is composed of electrons and protons.
2. number of electrons is equal to that of neutrons.
3. number of neutrons is equal to that of protons.
4. number of protons is equal to that of electrons.
Which of the following properties is not exhibited by sound waves?
1. Diffraction
2. Polarization
3. Interference
4. Reflection
When ultraviolet light .is incident on certain metallic surfaces, particles are emitted. These particles are called
1. positrons.
2. protons.
3. photoelectrons.
4. photons.
Niels Bohr drew certain conclusions about the structure of the atom. Which of the following statements is one of those conclusions?
1. The allowed orbits contain the same number of electrons.
2. Within an atom, there are certain allowed orbits.
3. All of the orbits represent the same amount of energy.
4. The orbit with the least energy is farthest from the nucleus.
The graph above illustrates the variation of temperature θ with time t for a solid that is being heated. Which processes take place at segments P and Q respectively?
1. Freezing and vaporization
2. Evaporation and solidification
3. Melting and boiling
4. Condensation and evaporation

Biology 2 - Theory Questions

Part 1

Question 1
1. Sub-question a
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
2. Sub-question b
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
3. Sub-question c
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
4. Sub-question d
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
5. Sub-question e
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
6. Sub-question f
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
Question 2
1. Sub-question a
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
2. Sub-question b
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
3. Sub-question c
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
4. Sub-question d
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
5. Sub-question e
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
6. Sub-question f
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
Question 3
1. Sub-question a
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
2. Sub-question b
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
3. Sub-question c
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
4. Sub-question d
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
5. Sub-question e
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
6. Sub-question f
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
Question 4
1. Sub-question a
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
2. Sub-question b
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
3. Sub-question c
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
4. Sub-question d
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
5. Sub-question e
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
6. Sub-question f
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
Question 5
1. Sub-question a
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
2. Sub-question b
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
3. Sub-question c
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
4. Sub-question d
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
5. Sub-question e
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
6. Sub-question f
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
Question 6
1. Sub-question a
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
2. Sub-question b
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
3. Sub-question c
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
4. Sub-question d
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
5. Sub-question e
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
6. Sub-question f
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
Question 7
1. Sub-question a
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
2. Sub-question b
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
3. Sub-question c
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
4. Sub-question d
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
5. Sub-question e
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
6. Sub-question f
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v

Part 2

Question 8
1. Sub-question a
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
2. Sub-question b
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
3. Sub-question c
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
4. Sub-question d
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
5. Sub-question e
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
6. Sub-question f
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
Question 9
1. Sub-question a
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
2. Sub-question b
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
3. Sub-question c
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
4. Sub-question d
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
5. Sub-question e
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
6. Sub-question f
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
Question 10
1. Sub-question a
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
2. Sub-question b
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
3. Sub-question c
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
4. Sub-question d
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
5. Sub-question e
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
6. Sub-question f
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
Question 11
1. Sub-question a
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
2. Sub-question b
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
3. Sub-question c
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
4. Sub-question d
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
5. Sub-question e
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
6. Sub-question f
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
Question 12
1. Sub-question a
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
2. Sub-question b
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
3. Sub-question c
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
4. Sub-question d
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
5. Sub-question e
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
6. Sub-question f
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v

Physics 3 - Practical Questions

Alternative A

Question 1
1. Sub-question a
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
2. Sub-question b
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
3. Sub-question c
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
4. Sub-question d
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
5. Sub-question e
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
6. Sub-question f
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
Question 2
1. Sub-question a
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
2. Sub-question b
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
3. Sub-question c
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
4. Sub-question d
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
5. Sub-question e
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
6. Sub-question f
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
Question 3
1. Sub-question a
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
2. Sub-question b
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
3. Sub-question c
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
4. Sub-question d
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
5. Sub-question e
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v
6. Sub-question f
  1. Sub-question i
  2. Sub-question ii
  3. Sub-question iii
  4. Sub-question iv
  5. Sub-question v