JAMB and WAEC Physics questions

829 questions with answers and explanations. Tap an option to check yourself.

1. Question 321· Gas laws· WAEC

   A gas at 3 atm and 300 K is heated at constant volume to 400 K. Find its new pressure.

   • A2.25 atm
   • B4 atm
   • C3 atm
   • D5 atm

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2. Question 322· Gas laws· JAMB

   According to the kinetic theory, the pressure of a gas is caused by

   • Aheat from the container
   • Bmolecules attracting one another
   • Cthe weight of the gas
   • Dmolecules colliding with the walls of the container

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3. Question 323· Gas laws· JAMB

   A gas occupies 200 cm³ at 1 atm. At constant temperature its volume when the pressure is 4 atm is:

   • A100 cm³
   • B50 cm³
   • C800 cm³
   • D400 cm³

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4. Question 324· Gas laws· JAMB

   Absolute zero is the temperature at which

   • Awater freezes
   • Ba gas would theoretically exert no pressure
   • Cmercury boils
   • Dgases expand most

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5. Question 325· Gas laws· WAEC

   A gas occupies 300 cm³ at 2 atmospheres. Find its volume at 3 atmospheres at the same temperature.

   • A200 cm³
   • B450 cm³
   • C150 cm³
   • D600 cm³

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6. Question 326· Gas laws· JAMB

   The general gas equation for a fixed mass of gas is

   • AV/P = constant
   • BPT = constant
   • CPV/T = constant
   • DPV = T²

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7. Question 327· Gas laws· WAEC

   A gas at 27 °C is heated at constant pressure until its volume doubles. Find its new temperature.

   • A54 °C
   • B327 °C
   • C600 °C
   • D300 °C

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8. Question 328· Gas laws· WAEC

   A gas at 100 kPa occupies 6 litres. At constant temperature its volume at 300 kPa is

   • A2 litres
   • B18 litres
   • C3 litres
   • D6 litres

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9. Question 329· Gas laws· WAEC

   For a fixed mass of gas at constant volume, the pressure is directly proportional to its

   • Adensity squared
   • BCelsius temperature
   • Cvolume
   • Dabsolute (kelvin) temperature

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10. Question 330· Gas laws· JAMB

    A gas at 2 atm and 27 °C is heated at constant volume to 127 °C. Find its new pressure.

    • A9.4 atm
    • B2.67 atm
    • C1.5 atm
    • D4 atm

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11. Question 331· Gas laws· WAEC

    The law stating that the volume of a fixed mass of gas at constant pressure is directly proportional to its absolute temperature is

    • ABoyle's law
    • Bthe pressure law
    • CCharles' law
    • DHooke's law

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12. Question 332· Gas laws· JAMB

    Charles's law states that, at constant pressure, the volume of a fixed mass of gas is proportional to its

    • Aabsolute temperature
    • BCelsius temperature
    • Cdensity
    • Dmass

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13. Question 333· Gas laws· JAMB

    A gas at 2 atm and 300 K is changed to 4 atm and 600 K. Its volume

    • Abecomes four times as large
    • Bdoubles
    • Chalves
    • Dremains the same

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14. Question 334· Gas laws· JAMB

    A sealed gas cylinder at 3 atm and 7 °C is left in the sun until it reaches 77 °C. Find the new pressure.

    • A2.4 atm
    • B33 atm
    • C3.75 atm
    • D6 atm

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15. Question 335· Gravitational field· WAEC

    The weight of a 5 kg mass on the moon, where g = 1.6 m/s², is

    • A50 N
    • B8 N
    • C3.1 N
    • D5 N

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16. Question 336· Gravitational field· JAMB

    The gravitational force between two masses is F. If the distance between them is doubled, the force becomes

    • A2F
    • BF/2
    • CF/4
    • D4F

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17. Question 337· Gravitational field· WAEC

    Gravity on the moon is one-sixth of that on earth. What is the weight of a 12 kg mass on the moon? [g on earth = 10 m/s²]

    • A72 N
    • B120 N
    • C2 N
    • D20 N

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18. Question 338· Gravitational field· JAMB

    Find the weight of a 60 kg man on a planet where the acceleration due to gravity is 4 m/s².

    • A600 N
    • B240 N
    • C15 N
    • D64 N

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19. Question 339· Gravitational field· JAMB

    A body weighs 50 N on Earth where g = 10 m/s². Its mass is:

    • A0.2 kg
    • B50 kg
    • C500 kg
    • D5 kg

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20. Question 340· Gravitational field· WAEC

    A geostationary satellite has a period of

    • A365 days
    • B12 hours
    • C1 hour
    • D24 hours

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