Physics Past Questions v41For (JAMB/WAEC/NECO); These Physics past questions are for students who are sitting for the following examinations

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#1. Which of the following types of motion is/are exhibited by a cylindrical drum rolling down an incline plane?

A) Random and rotational

A) Random and rotational

B) Rotational and oscillatory

B) Rotational and oscillatory

C) Rotational only

C) Rotational only

D) Translations only

D) Translations only

E) Translational and rotational

E) Translational and rotational

#2. A series RLC circuit is said to resonate, when

A) capacitive reactance is zero

A) capacitive reactance is zero

B) conductance is maximum

B) conductance is maximum

C) current is minimum

C) current is minimum

D) impedance is minimum

D) impedance is minimum

E) inductive reactance is zero

E) inductive reactance is zero

#3. Calculate the work done in charging a capacitor of capacitance 20µF through a potential difference of 1000V.

A) 0.02 J

A) 0.02 J

B) 0.10 J

B) 0.10 J

C) 0.20 J

C) 0.20 J

D) 1.00 J

D) 1.00 J

E) 10.00 J

E) 10.00 J

#4. Arrange the following in the order of their increasing frequency.I. Visible light II. Gamma rays III. Radio waves IV. Infra-red radiation V. Ultra-violet radiation

A) I, II, III, IV, V

A) I, II, III, IV, V

B) II, III, IV, V, I

B) II, III, IV, V, I

C) III, IV, V, I, II

C) III, IV, V, I, II

D) IV, III, I. V, II

D) IV, III, I. V, II

E) III, IV, I,V, II

E) III, IV, I,V, II

#5. Two forces A and B act at a point. If their resultant is [given by] (B - A) in the direction of B, then

A) A and B are equal

A) A and B are equal

B) A is greater than B

B) A is greater than B

C) the angle between A and B is 0°

C) the angle between A and B is 0°

D) the angle between A and B is 90°

D) the angle between A and B is 90°

E) the angle between A and B is 180°

E) the angle between A and B is 180°

#6. The gravitational field intensity at a location X, in space, is two-fifths of its value on the earth’s surface. If the weight of an object at X is 4.80N. what is its weight on the earth?

A) 1.92N

A) 1.92N

B) 2.88N

B) 2.88N

C) 6.72N

C) 6.72N

D) 8.00N

D) 8.00N

E) 12.00N

E) 12.00N

#7. Electric charges on the surface of a conductor would be most evenly distributed if the shape of the conductor is

A) conical

A) conical

B) cubical

B) cubical

C) cylindrical

C) cylindrical

D) parabolic

D) parabolic

E) spherical

E) spherical

#8. Which of the following statements is correct about light and sound waves? Both

A) are longitudinal waves

A) are longitudinal waves

B) are transverse waves

B) are transverse waves

C) have the same velocity in air

C) have the same velocity in air

D) need a medium for propagation

D) need a medium for propagation

E) transmit energy

E) transmit energy

#9. Which of the following pairs of musical instruments produce sound due to the vibration of air column?

A) Bell and piano

A) Bell and piano

B) Guitar and flute

B) Guitar and flute

C) Trumpet and drum

C) Trumpet and drum

D) Trumpet and flute

D) Trumpet and flute

E) Violin and organ

E) Violin and organ

#10. Calculate the heat energy lost when 10g of boiling water changes to ice at 0°C. [Specific latent heat of ice 336Jg-1 . Specific heat capacity of water 4.2Jg-1 K-1]

A) 840J

A) 840J

B) 3360J

B) 3360J

C) 3420J

C) 3420J

D) 4200J

D) 4200J

E) 7560J

E) 7560J

#11. The phenomenon of photoelectric effect is used in the following EXCEPT

A) automatic doors

A) automatic doors

B) bugler alarm

B) bugler alarm

C) electric fire alarm

C) electric fire alarm

D) sound production from film tracks

D) sound production from film tracks

E) television cameras

E) television cameras

#12. Which of the following statements about water is NOT correct?

A) Pure water freezes at 0°C under normal pressure

A) Pure water freezes at 0°C under normal pressure

B) The volume of a given mass of water at 0° is less than its volume at 4°C

B) The volume of a given mass of water at 0° is less than its volume at 4°C

C) Water boils at a definite temperature

C) Water boils at a definite temperature

D) Water evaporates at all temperatures

D) Water evaporates at all temperatures

E) Water has its maximum density at 4°C

E) Water has its maximum density at 4°C

#13. A body accelerating will have a constant speed if it is

A) falling from a height

A) falling from a height

B) in equilibrium

B) in equilibrium

C) moving in a circular path

C) moving in a circular path

D) moving in a straight line

D) moving in a straight line

E) oscillating

E) oscillating

#14. A sound wave from a ship is received 8.4s later. What is the depth of the sea? [Speed of sound in water = 1500ms-1]

A) 0.179km

A) 0.179km

B) 0.357km

B) 0.357km

C) 3.150km

C) 3.150km

D) 6.300km

D) 6.300km

E) 12.600km

E) 12.600km

#15. Which of the following statements about a gas is NOT correct?

A) It has no definite shape

A) It has no definite shape

B) It is compressible

B) It is compressible

C) Its molecules are closely packed

C) Its molecules are closely packed

D) Its molecules gain kinetic energy when heated

D) Its molecules gain kinetic energy when heated

E) Its molecules move about randomly

E) Its molecules move about randomly

#16. A body executing simple harmonic motion has an angular speed of 2π radians. Its period of oscillation is (π 3.14).

A) 0.05s

A) 0.05s

B) 1.00s

B) 1.00s

C) 2.00s

C) 2.00s

D) 3.14s

D) 3.14s

E) 6.28s

E) 6.28s

#17. An immersion heater is rated 1500W. How long does it take the heater to raise the temperature of 1 kg of water by 30°C? (Assume heat lost to the surrounding is negligible, Specific heat capacity of water 4200Jkg-1K-1)

A) 84s

A) 84s

B) 112s

B) 112s

C) 130s

C) 130s

D) 168s

D) 168s

E) 280s

E) 280s

#18. The equation PxVyTz = Constant is Charles’ law if

A) x = 0, y = 1 and z = -1

A) x = 0, y = 1 and z = -1

B) x = 0, y = -1 and z = 1

B) x = 0, y = -1 and z = 1

C) x = 1, y = 1 and z = 0

C) x = 1, y = 1 and z = 0

D) x = 1, y = 1 and z = -1

D) x = 1, y = 1 and z = -1

E) x = 1, y = 1 and z = 1

E) x = 1, y = 1 and z = 1

#19. Which of the following cells does not require a dipolar for effective and efficient delivery of current?

A) Daniel cell

A) Daniel cell

B) Dry Leclanche cell

B) Dry Leclanche cell

C) Nickel-iron accumulator

C) Nickel-iron accumulator

D) Voltaic cell

D) Voltaic cell

E) Wet Leclanche cell

E) Wet Leclanche cell

#20. Two images Y and X are formed by a plane mirror and a convex mirror respectively. Which of the following is correct about their characteristics?

A) Both are inverted

A) Both are inverted

B) The magnification of Y is greater than one while that of X is one

B) The magnification of Y is greater than one while that of X is one

C) The magnification of Y is one while that of X is less than one

C) The magnification of Y is one while that of X is less than one

D) Y is inverted while X is erect

D) Y is inverted while X is erect

E) Y is real while X is virtual.

E) Y is real while X is virtual.

#21. The electric potential at a distance d from a point charge q in air of permittivity eo is expressed as

A) q2 ÷ 4πeod

A) q2 ÷ 4πeod

B) q2 ÷ 4πeo

B) q2 ÷ 4πeo

C) q ÷ 4πeod2

C) q ÷ 4πeod2

D) q ÷ 4πeod

D) q ÷ 4πeod

E) q ÷ 4πeo2d

E) q ÷ 4πeo2d

#22. The work done in extending a spring by 40mm is 1.52J. Calculate the elastic’constant of the spring.

A) 38.8 Nm-1

A) 38.8 Nm-1

B) 60.8 Nm-1

B) 60.8 Nm-1

C) 190.0 Nm-1

C) 190.0 Nm-1

D) 1900.0 Nm-1

D) 1900.0 Nm-1

E) 3800.0 Nm-1

E) 3800.0 Nm-1

#23. Which of the following statements is correct about volatile liquids? They have

A) low boiling point

A) low boiling point

B) Low evaporating rate

B) Low evaporating rate

C) high conductivity

C) high conductivity

D) high density

D) high density

E) high viscosity

E) high viscosity

#24. A transformer has an efficiency of 92.5%. the ratio number of turns in the primary coil to that in the secondary coil is 128 : 45. If the current passing through the secondary coil is 9.0A, calculate the current passing through the primary-coil.

A) 2.93A

A) 2.93A

B) 3.16A

B) 3.16A

C) 3.42A

C) 3.42A

D) 25.60A

D) 25.60A

E) 27.68A

E) 27.68A

#25. Inertia is the property of a body which makes the body to

A) accelerate

A) accelerate

B) be reluctant to move when at rest

B) be reluctant to move when at rest

C) experience friction when moving

C) experience friction when moving

D) move randomly

D) move randomly

E) retard

E) retard

#26. A ball of mass 0.1kg moving with velocity of 20ms-1 is hit by a force which acts on it for 0.02s. If the ball moves off in the opposite direction with a velocity of 25ms-1 , calculate the magnitude of the force.

A) 25N

A) 25N

B) 100N

B) 100N

C) 125N

C) 125N

D) 225N

D) 225N

E) 250N

E) 250N

#27. An object of mass 2kg moves for 5s with a uniform velocity of 10ms. What is the magnitude of its acceleration in ms-2 ?

A) zero

A) zero

B) 2.5

B) 2.5

C) 10

C) 10

D) 12.5

D) 12.5

E) 100

E) 100

#28. In the electrical method of making a magnet, the polar the magnet formed depends on the

A) amount of current passed

A) amount of current passed

B) direction of the current

B) direction of the current

C) nature of the material used

C) nature of the material used

D) orientation of the magnetic material in space

D) orientation of the magnetic material in space

E) size of the magnetic material

E) size of the magnetic material

#29. Which of the following pairs of phenomena helps in the resolution of the wave-particle paradox of matter?

A) Compton effect and thermionic emission

A) Compton effect and thermionic emission

B) Electron diffraction and refraction

B) Electron diffraction and refraction

C) emission and absorption of light

C) emission and absorption of light

D) Interference and polarization

D) Interference and polarization

E) Reflection and photoelectric effect

E) Reflection and photoelectric effect

#30. Which of the following phenomena is responsible for the spherical shape of soap bubbles?

A) Adhesion

A) Adhesion

B) Capillarity

B) Capillarity

C) Cohesion

C) Cohesion

D) Osmosis

D) Osmosis

E) Surface tension

E) Surface tension

#31. A plane progressive wave is represented by the equation y = 0.2sin (200πt - 0.5.x) where x and y are measured in cm and t in s. What is the frequency of the wave?

A) 0.5Hz

A) 0.5Hz

B) 4.0Hz

B) 4.0Hz

C) 10.0Hz

C) 10.0Hz

D) 100.0Hz

D) 100.0Hz

E) 200.0Hz

E) 200.0Hz

#32. A stone is thrown with a speed of 10ms at an angle of 30° to the horizontal, Calculate its time of flight, (g = 10ms2)

A) 0.5s

A) 0.5s

B) 1.0s

B) 1.0s

C) 1.7s

C) 1.7s

D) 2.0s

D) 2.0s

E) 3.4s

E) 3.4s

#33. A projectile attains its maximum height when the angle of projection is

A) 30°

A) 30°

B) 45°

B) 45°

C) 60°

C) 60°

D) 75°

D) 75°

E) 90°

E) 90°

#34. Which of the following statements about the pressure in a liquid is NOT correct? It

A) acts in all direction

A) acts in all direction

B) changes with the material of the container

B) changes with the material of the container

C) is the same at all points in the same horizontal plane

C) is the same at all points in the same horizontal plane

D) varies with the density of the liquid

D) varies with the density of the liquid

E) varies with the depth of the liquid

E) varies with the depth of the liquid

#35. In which of the following fields is repulsion NOT experienced?

A) Electrical only

A) Electrical only

B) Gravitational only

B) Gravitational only

C) Magnetic only

C) Magnetic only

D) Magnetic and electrical

D) Magnetic and electrical

E) Magnetic and gravitational

E) Magnetic and gravitational

#36. A ball of mass 100g falls from a height of 5m onto a concrete floor and rebounds to a height of 3m. Calculate the energy lost. (g = 10ms-2)

A) 2J

A) 2J

B) 20J

B) 20J

C) 100J

C) 100J

D) 1000J

D) 1000J

E) 2000J

E) 2000J

#37. Two forces of magnitude 8N and 4N act at right angle to each other. The angle between the resultant and the 8N force is

A) 23.9°

A) 23.9°

B) 26.6°

B) 26.6°

C) 29.5°

C) 29.5°

D) 60.0°

D) 60.0°

E) 63.4°

E) 63.4°

#38. The defect of the eye lens which occurs as a result of weak ciliary muscles is called

A) astigmatism

A) astigmatism

B) hypermetropia

B) hypermetropia

C) myopia

C) myopia

D) presbyopia

D) presbyopia

E) spherical aberration

E) spherical aberration

#39. An observer heard the sound of thunder 5.8s after the lightning flash was seen. How far was he from the source? [Speed of sound in air = 330ms-1] A) 957m B) 1914m C) 3828m D) 8700m E) 17400m

A) 957m

A) 957m

B) 1914m

B) 1914m

C) 3828m

C) 3828m

D) 8700m

D) 8700m

E) 17400m

E) 17400m

#40. Which of the following substances undergoes sublimation?

A) Ether

A) Ether

B) Ice

B) Ice

C) Iodine

C) Iodine

D) Naphthalene

D) Naphthalene

E) Turpentine

E) Turpentine

#41. The inside of a vacuum flask is usually coated with silver to reduce heat loss by

A) condensation

A) condensation

B) conduction

B) conduction

C) convection

C) convection

D) evaporation

D) evaporation

E) radiation

E) radiation

#42. A near sighted student has a near point of 0.1m and a focal length of 5.0cm. What is the student's far point?

A) 0.200m

A) 0.200m

B) 8.000m

B) 8.000m

C) 0.125m

C) 0.125m

D) 2.100m

D) 2.100m

E) No Correct Option

E) No Correct Option

#43. The wave phenomenon demonstrated in the diagram above is

A) reflection

A) reflection

B) deflection

B) deflection

C) diffraction

C) diffraction

D) refraction

D) refraction

#44. The diagram above represents the graph of the force F applied in stretching a spiral spring against the corresponding extension (X). The force constant of the spring is

A) 20 Nm-1

A) 20 Nm-1

B) 40 Nm-1

B) 40 Nm-1

C) 30 Nm-1

C) 30 Nm-1

D) 10 Nm-1

D) 10 Nm-1

#45. If a light wave has a wavelength of 500nm in air what is the frequency of the wave? [c = 3 x 108 ms-1]

A) 3.0 x 1014 Hz

A) 3.0 x 1014 Hz

B) 6.0 x 1014 Hz

B) 6.0 x 1014 Hz

C) 6.0 x 1012 Hz

C) 6.0 x 1012 Hz

D) 2.5 x 1014 Hz

D) 2.5 x 1014 Hz

#46. Calculate the e.m.f of the cell in the above circuit if its internal resistance is negligible.

A) 12 V

A) 12 V

B) 8 V

B) 8 V

C) 2 V

C) 2 V

D) 36 V

D) 36 V

#47. From the diagram above, if the potential difference across the resistor, capacitor and inductor are 80 v, 110 v, 40 v respectively, the effective potential difference is

A) 116.3 V

A) 116.3 V

B) 50.0 V

B) 50.0 V

C) 230.0 V

C) 230.0 V

D) 106.3 V

D) 106.3 V

#48. An air craft attempt too fly due north at 100 kmh-1. If the wind blows against it from east to west at 60 kmh-1, its resultant velocity is

A) 117 kmh-1, N31oE

A) 117 kmh-1, N31oE

B) 127 kmh-1, N31oE

B) 127 kmh-1, N31oE

C) 117 kmh-1, N31oW

C) 117 kmh-1, N31oW

D) 127 kmh-1, N31oW

D) 127 kmh-1, N31oW

#49. A car accelerate uniformly from rest at 4 ms-2. How far will it travel in the fifth complete second?

A) 100 m

A) 100 m

B) 50m

B) 50m

C) 32 m

C) 32 m

D) 18 m

D) 18 m

#50. A body of mass 12kg traveling at 4.2ms-1 collides with a second body of mass 18kg at rest. Calculate their common velocity if the two bodies coalesce after collision

A) 1.5 ms-1

A) 1.5 ms-1

B) 1.4 ms-1

B) 1.4 ms-1

C) 2.1 ms-1

C) 2.1 ms-1

D) 1.7 ms-1

D) 1.7 ms-1

#51. The terminal velocity of a ball-bearing falling through a viscous fluid reached when the

A) upthrust is equal to the weight of the ball

A) upthrust is equal to the weight of the ball

B) ball accelerate uniformly

B) ball accelerate uniformly

C) upthrustis equal to the velocity of the ball

C) upthrustis equal to the velocity of the ball

D) velocity is uniform

D) velocity is uniform

#52. The pressure of two moles of an ideal gas at a temperature of 27oC and volume 10-2m3 is [R = 8.313 J mol-1K-1]

A) 4.99 x 105 Nm-2

A) 4.99 x 105 Nm-2

B) 9.80 x 103 Nm-2

B) 9.80 x 103 Nm-2

C) 4.98 x 103 Nm-2

C) 4.98 x 103 Nm-2

D) 9.80 x 105 Nm-2

D) 9.80 x 105 Nm-2

#53. The value of x, y and z respectively in the expression MxLyTz for the universal gravitational constant G are

A) 2, -3, -2

A) 2, -3, -2

B) -1, 3, -2

B) -1, 3, -2

C) -1, 2, -3

C) -1, 2, -3

D) -2, -1, 3

D) -2, -1, 3

#54. When a pentavalent impurity is added to a pure semiconductor, it becomes

A) a p-type semiconductor

A) a p-type semiconductor

B) an n-type semiconductor

B) an n-type semiconductor

C) an insulator

C) an insulator

D) an intrinsic semi-conductor

D) an intrinsic semi-conductor

#55. Cancerous cells can be destroyed by

A) ultraviolet rays

A) ultraviolet rays

B) alpha particules

B) alpha particules

C) x - rays

C) x - rays

D) infrared rays

D) infrared rays

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