Updated on January 8, 2024

Physics Past Questions v9 For (JAMB/WAEC/NECO)

Physics Past Questions v8 For (JAMB/WAEC/NECO); These Physics past questions are for students who are sitting for the following examinations

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NECO
WAEC GCE
NECO GCE
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NABTEB GCE

Physics Past Questions v9 (JAMB/WAEC/NECO)

Results

#1. In the Fig above, Current I passes through the combination, if the power dissipated in the 5 ohm resistor is 40W, then the power dissipated in the 10 ohm resistor is

A) 10W

B) 20W

C) 40W

D) 80

E) 100W

#2. The graph in the fig above describes the motion of a particle. the acceleration of the particle during the motion is

A) 0.00ms-2

B) 0.25ms-2

C) 4.00ms-2

D) 8.00ms-2

E) 10.00ms-2

#3. In the Fig above, MN is a light uniform meter rule pivoted at O, the 80cm mark. A load of mass 3.0 kg is suspended on the meter rule at L, the 10cm mark. If the rule is kept in equilibrium by a string RP, fixed at P and attached to the rule at R, the 20cm mark, then the Tension T on the string is

A) 30N

B) 34N

C) 35N

D) 60N

E) 70N

#4. Normal atmospheric pressure at sea-level is 105Nm-2 and the acceleration due to gravity is approximately 10ms-1. If the atmosphere has a uniform density of 1kgm-3, its height is

A) 100m

B) 1000m

C) 10 000m

D) 100 000m

E) 1000 000m

#5. Which of the following features is NOT a characteristic of natural radioactivity?

A) Radioactivity is a nuclear phenomenon

B) Radioactivity is exhibited only by elements of mass number greater than 206

C) The radioactivity of an element is affected by electric and magnetic fields in the surroundings

D) Radioactive substances emits three types of radiations, a-rays, -rays and y-rays en

E) The radioactive element is transformed into a new element

#6. On which of the following does the operation of a moving coil ammeter depend? i. Electromagnetic induction ii. Force on a carrying-current conductor iii. Magnetic effect of an electric current

A) i only

B) ii only

C) iii only

D) ii and iii only

E) i,ii and iii

#7. A transformer has a primary coil with 500 turns and a secondary coil with 2500 turns. When the voltage input to the primary coil is 120V, the output is

A) 6000V

B) 600V

C) 240V

D) 60V

E) 24V

#8. Which of the following statements about electrolysis is NOT correct?

A) The substances in solution in the electrolyte become ionized

B) Ions are electrically charged and are attracted towards electrodes when a potential difference is applied

C) Ions may be discharged at the electrodes, forming bubbles or deposits

D) The mass deposited depends upon the length of time for which current flows

E) The mass of gas set free or metal deposited is proportional to the square of the curren

#9. Which of the following statements is NOT correct?

A) The average range of distinct vision for a normal eye is from the font of the eye

B) Longsighted people have difficulty in making the eye lense sufficiently powerful to focus eon narby objects

C) Shortsighted people cannot accommodate distant objects

D) Longsighted people need diverging spectacle lenses

E) A person with long sight has his eye-ball too short and the image of an object is therefore formed behind the retina

#10. Which of the following methods CANNOT be used to produce a steel magnet?

A) passing of an electric current through a solenoid

B) repeated stroking of the specimen with a magnet

C) repeated stroking of the specimen in opposite directions with magnets

D) heating of the specimen

E) hammering of the specimen in the earth's magnetic field

#11. Which of the following will convert a milliammeter to a voltmeter?

A) low series resistance

B) low parallel resistance

C) high series resistance

D) high parallel resistance

E) parallel resistance equal to milliammeter resistance

#12. A wire P has half the diameter and half the length of a wire Q of similar material. The ratio of the resistance of P to that of Q is

A) 8 : 1

B) 4 : 1

C) 2 : 1

D) 1 : 1

E) 1 : 4

#13. A convex mirror is used as a driving mirror because i. its image is erect. ii. it has a large field of view. iii. it has a long focal length. Identify the CORRECT statement(s)

A) i andiii only

B) i and ii only

C) ii and iii only

D) i, ii, and iii only

E) i only

#14. Two rays of light from a point below the surface of water are equally inclined to each other at 60o in water. What is the angle between the rays when they emerge into air? (Take the refractive index of water to be )

A) 41.8o

B) 44.1o

C) 60.0o

D) 83.6o

E) 120.0o

#15. A narrow beam of white light can be split up into different colours by a glass prism. The correct explanation is that

A) white light is an electromagnetic wave

B) the prism has all the colours of the white light

C) white light has undergone total internal reflection in the prism

D) different colours of white light travel with different speeds in glass

E) white ligth consist of yellow, green and red colours

#16. A charge of one coulomb liberates 0.0033g of copper in an electrolytic process. How long will it take a current of 2A to librate 1.98g of copper in such a process?

A) 5 mins

B) 30 mins

C) 50 mins

D) 60 mins

E) 120 mins

#17. If the distance between two stationary charged particle is doubled, the magnitude of the electro-static force between them will be

A) doubled

B) halved

C) a quarter of its former value

D) unchanged

E) four times the original value

#18. When a sound wave passes from air into water its

A) speed and frequency increases but its wavelength remains the same

B) speed and wavelength increases but its frequency remains the same

C) speed decreases

D) speed remains the same but its frequency and wavelength change

E) speed increases but its frequency and wavelength decreases

#19. If the fundamental frequency of a closed pipe organ on a day when the speed of sound is 340ms-1 is 170Hz, then the length of the pipe is

A) 50cm

B) 70cm

C) 100cm

D) 150cm

E) 200cm

#20. An object is placed 15cm in front of a concave mirror of radius 40cm. The image formed

A) virtual and 60cm behind the mirror

B) real and 60cm behind the mirror

C) virtual and at infinity

D) real and at infinity

E) virtual and 40cm from the mirror

#21. A 45o triangular glass prism can be used as a reflector of light because

A) A refraction never takes place in such prism

B) the angle of reflection equals the angle of incidence

C) the refractive index of glass is less than 1

D) it is transparent

E) the critival angle angle for glass is less than 45o

#22. Water shows anomalous behaviour

A) below 0oC

B) between 0oC and 4oC

C) at exactly 4oC

D) between 4oC and 100oC

E) above 100oC

#23. A good calorimeter should be of

A) low specific heat capacity and low heat conductivity

B) low specific heat capacity and high heat conductivity

C) high specific heat capacity and low heat conductivity

D) high specific heat capacity and low heat conductivity

E) dull surface and low heat conductivity

#24. Which of the following statements are NOT correct?

A) boiling occurs when the saturated vapour pressure of the liquid involved equals the external pressure

B) both the boiling point and the saturated vapour pressure of a given liquid depends on the external pressure

C) the saturated vapour presssure rises with increase in temperature

D) the saturated vapour pressure is independent of the volume available for the vapour

E) it is possible to boil water at a lower temperature than 100oC at high altitude

#25. Which of the following phenomena CANNOT be explained by the molecular theory of matter?

A) Expansion

B) Conduction

C) Convection

D) Radiation

E) Evaporation

#26. A thin aluminum plate has a surface area of 1500m at 20oC. What will be its surface area when it is cooled to -20oC? (Take the linear expansivity of aluminum to be 2.5 x 10-5k-1).

A) 1.503m2

B) 1.500m2

C) 1.498m2

D) 1.497m2

E) 1.490m2

#27. Two liquids, P at a temperature of 20oC and Q at a temperature of 80oC have specific heat capacities of 1.0Jkg-1oC-1 and 1.5J kg-1oC-1respectively. if equal masses of P and Q are mixed in a lagged calorimeter, then the equilibrium temperature is

A) 44oC

B) 50oC

C) 56oC

D) 60oC

E) 70oC

#28. A quantity of gas occupies a certain volume when the temperature is -73oC and the pressure is 1.5 atmospheres. If the pressure is increased to 4.5 atmospheres and the volume is halved at the same time, what will be the new temperature of the gas?

A) 573oC

B) 327oC

C) 300oC

D) 110oC

E) 27oC

#29. A 0.05kg bullet travelling at 500ms-1 horizontally strikes a thick vertical wall. It stops after penetrating through the wall horizontalerts on the buldistance of 0.25m. What is the magnitude of the average force the wall exlet?

A) 25N

B) 50N

C) 250N

D) 500N

E) 25 000N

#30. A force of 100N stretches an elastic string to a total length of 20cm. If an additional force of 100N stretches the string 5cm further, Find the natural length of the string

A) 15cm

B) 12cm

C) 10cm

D) 8cm

E) 5cm

#31. The areas of the effort and load pistons of a hydraulic press are 0.5m2 and 5m2 respectively. If a force F1 of 100N is applied on the effort piston, the force F2 on the load is

A) 10N

B) 100N

C) 500N

D) 1000N

E) 5000N

#32. A metal cube of volume 103mm3 is lowered into a measuring cylinder containing water. If the internal cross-sectional area of the cylinder is 1.5 x 102mm2, by how much does the water level rise in the cylinder?

A) 6.67 x 100mm

B) 8.50 x 102mm

C) 1.15 x 103mm

D) 2.50 x 103mm

E) 1.50 x 105mm

#33. If a car starts from rest and moves with a uniform acceleration of 10ms-2 for ten seconds, the distance it covers in the last one second of its motion is

A) 95m

B) 100m

C) 500m

D) 905m

E) 1000m

#34. A block of mass 2kg resting on a smooth horizontal plane is acted upon simultaneously by two-forces, 10N due North and 10N due East. The magnitude of the acceleration produced by the force on the block is

A) 0.10ms-2

B) 7.07ms-2

C) 10.00ms-2

D) 14.10ms-2

E) 20.00ms-2

#35. A metal block of mass 5kg lies on a rough horizontal platform. If a horizontal force of 8N applied to the block through its center of mass just slides the block on the platform, then the coefficient of limiting friction between the block and platform is

A) 0.16

B) 0.63

C) 0.80

D) 1.60

E) 2.00

#36. Which of the following is NOT a force? A) Friction B) Tension C) Upthrust D) Weight E) Impulse

A) Friction

B) Tension

C) Upthrust

D) Weight

E) Impulse

#37. ATwo masses 40g and 60g respectively, are attached firmly to the ends of the light meter rule. The center of gravity of the system is

A ) at the mid-point of the meter rule

B) 40cm from the lighter mass

C) 40cm from the heavier mass

D) 60cm from the heavier mass

E) indeterninate because the meter-rule is light

#38. Which of the following is NOT a fundamental S.I unit?

A) Meter

B) Ampere C) Kelvin D) Seconds E) Radian

C) Kelvin

D) Seconds

E) Radian

#39. A simple pendulum with a period of 2.0s has its length doubled. Its new period is

A) 1.00s

B) 1.41s

C) 0.3s

D) 2.83s

E) 4.00s

#40. Which of the following statements are true about the spring balance and the chemical balance? i. both are used to measure the mass of an object. ii. either of them may be used to measure the weight of an object. iii. the spring balance works on the principle of Hooke's law while the chemical balance works on the principle of moments. iv. a change in gravity does the readings of a spring balance but not that of a chemical balance.

A) i, and iv

B) ii and iii

C) ii and iv

D) i, ii and iii

E) i and iii

#41. Which of the following types of motion are oscillatory? i.a diving board when used by a diver. ii. the motion of the balance wheel of a wrist watch. iii. the motion of the turn-table of a record player. iv. the motion of the center of a ten kobo piece as it rolls down an inclined plane. v. the motion of the needle of a D.C. ammeter into which a low A.C. current is passed

A) i and ii

B) i, ii and iii

C) ii, ii and iv

D) i, ii and v

E) iii, iv and iv

#42. A convex mirror is used as a driving mirror because i. its image is erect. ii. it has a large field of view. iii. it has a long focal length. Identify the CORRECT statement(s)

A) i andiii only

B) i and ii only

C) ii and iii only

D) i, ii, and iii only

E) i only

Finish

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Physics Past Questions v9 For (JAMB/WAEC/NECO)

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Physics Past Questions v9 For (JAMB/WAEC/NECO)

Physics Past Questions v9 (JAMB/WAEC/NECO)

Results

#1. In the Fig above, Current I passes through the combination, if the power dissipated in the 5 ohm resistor is 40W, then the power dissipated in the 10 ohm resistor is

#2. The graph in the fig above describes the motion of a particle. the acceleration of the particle during the motion is

#4. Normal atmospheric pressure at sea-level is 105Nm-2 and the acceleration due to gravity is approximately 10ms-1. If the atmosphere has a uniform density of 1kgm-3, its height is

#5. Which of the following features is NOT a characteristic of natural radioactivity?

#6. On which of the following does the operation of a moving coil ammeter depend? i. Electromagnetic induction ii. Force on a carrying-current conductor iii. Magnetic effect of an electric current

#7. A transformer has a primary coil with 500 turns and a secondary coil with 2500 turns. When the voltage input to the primary coil is 120V, the output is

#8. Which of the following statements about electrolysis is NOT correct?

#9. Which of the following statements is NOT correct?

#10. Which of the following methods CANNOT be used to produce a steel magnet?

#11. Which of the following will convert a milliammeter to a voltmeter?

#12. A wire P has half the diameter and half the length of a wire Q of similar material. The ratio of the resistance of P to that of Q is

#13. A convex mirror is used as a driving mirror because i. its image is erect. ii. it has a large field of view. iii. it has a long focal length. Identify the CORRECT statement(s)

#14. Two rays of light from a point below the surface of water are equally inclined to each other at 60o in water. What is the angle between the rays when they emerge into air? (Take the refractive index of water to be )

#15. A narrow beam of white light can be split up into different colours by a glass prism. The correct explanation is that

#16. A charge of one coulomb liberates 0.0033g of copper in an electrolytic process. How long will it take a current of 2A to librate 1.98g of copper in such a process?

#17. If the distance between two stationary charged particle is doubled, the magnitude of the electro-static force between them will be

#18. When a sound wave passes from air into water its

#19. If the fundamental frequency of a closed pipe organ on a day when the speed of sound is 340ms-1 is 170Hz, then the length of the pipe is

#20. An object is placed 15cm in front of a concave mirror of radius 40cm. The image formed

#21. A 45o triangular glass prism can be used as a reflector of light because

#22. Water shows anomalous behaviour

#23. A good calorimeter should be of

#24. Which of the following statements are NOT correct?

#25. Which of the following phenomena CANNOT be explained by the molecular theory of matter?

#26. A thin aluminum plate has a surface area of 1500m at 20oC. What will be its surface area when it is cooled to -20oC? (Take the linear expansivity of aluminum to be 2.5 x 10-5k-1).

#27. Two liquids, P at a temperature of 20oC and Q at a temperature of 80oC have specific heat capacities of 1.0Jkg-1oC-1 and 1.5J kg-1oC-1respectively. if equal masses of P and Q are mixed in a lagged calorimeter, then the equilibrium temperature is

#28. A quantity of gas occupies a certain volume when the temperature is -73oC and the pressure is 1.5 atmospheres. If the pressure is increased to 4.5 atmospheres and the volume is halved at the same time, what will be the new temperature of the gas?

#29. A 0.05kg bullet travelling at 500ms-1 horizontally strikes a thick vertical wall. It stops after penetrating through the wall horizontalerts on the buldistance of 0.25m. What is the magnitude of the average force the wall exlet?

#30. A force of 100N stretches an elastic string to a total length of 20cm. If an additional force of 100N stretches the string 5cm further, Find the natural length of the string

#31. The areas of the effort and load pistons of a hydraulic press are 0.5m2 and 5m2 respectively. If a force F1 of 100N is applied on the effort piston, the force F2 on the load is

#32. A metal cube of volume 103mm3 is lowered into a measuring cylinder containing water. If the internal cross-sectional area of the cylinder is 1.5 x 102mm2, by how much does the water level rise in the cylinder?

#33. If a car starts from rest and moves with a uniform acceleration of 10ms-2 for ten seconds, the distance it covers in the last one second of its motion is

#34. A block of mass 2kg resting on a smooth horizontal plane is acted upon simultaneously by two-forces, 10N due North and 10N due East. The magnitude of the acceleration produced by the force on the block is

#35. A metal block of mass 5kg lies on a rough horizontal platform. If a horizontal force of 8N applied to the block through its center of mass just slides the block on the platform, then the coefficient of limiting friction between the block and platform is

#36. Which of the following is NOT a force? A) Friction B) Tension C) Upthrust D) Weight E) Impulse

#37. ATwo masses 40g and 60g respectively, are attached firmly to the ends of the light meter rule. The center of gravity of the system is

#38. Which of the following is NOT a fundamental S.I unit?

#39. A simple pendulum with a period of 2.0s has its length doubled. Its new period is

#42. A convex mirror is used as a driving mirror because i. its image is erect. ii. it has a large field of view. iii. it has a long focal length. Identify the CORRECT statement(s)

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