Physics questions with solutions

1. Question 1Easy

   The approximate speed of light in a vacuum is:

   • A.3 × 10⁸ m/sCorrect
   • B.3 × 10⁶ m/s
   • C.3 × 10¹⁰ m/s
   • D.3 × 10⁵ m/s
   Show solution

   Light travels at about 3 × 10⁸ metres per second in a vacuum.

2. Question 2Easy

   What is the SI unit of force?

   • A.NewtonCorrect
   • B.Joule
   • C.Watt
   • D.Pascal
   Show solution

   Force is measured in newtons (N); one newton accelerates a 1 kg mass at 1 m/s².

3. Question 3Easy

   The instrument used to measure temperature is the:

   • A.ThermometerCorrect
   • B.Barometer
   • C.Hygrometer
   • D.Ammeter
   • E.Anemometer
   Show solution

   A thermometer measures temperature. A barometer measures air pressure, a hygrometer humidity, an ammeter current and an anemometer wind speed.

4. Question 4Easy

   What is the SI unit of length?

   • A.Litre
   • B.Gram
   • C.Second
   • D.MetreCorrect
   Show solution

   The metre is the SI unit of length.

5. Question 5Easy

   What is the SI unit of mass?

   • A.KilogramCorrect
   • B.Joule
   • C.Metre
   • D.Newton
   Show solution

   The kilogram is the SI unit of mass.

6. Question 6Easy

   What is the chemical symbol of gold?

   • A.Gd
   • B.Ag
   • C.AuCorrect
   • D.Go
   Show solution

   The chemical symbol of gold is Au (from Latin aurum).

7. Question 7Easy

   Which instrument is used to measure atmospheric pressure?

   • A.Thermometer
   • B.BarometerCorrect
   • C.Hygrometer
   • D.Ammeter
   Show solution

   A barometer measures atmospheric pressure; a hygrometer measures humidity.

8. Question 8Easy

   Which instrument measures atmospheric pressure?

   • A.BarometerCorrect
   • B.Voltmeter
   • C.Odometer
   • D.Thermometer
   Show solution

   A barometer measures atmospheric pressure.

9. Question 9Easy

   The SI unit of force is the:

   • A.joule
   • B.pascal
   • C.watt
   • D.newtonCorrect
   Show solution

   Force is measured in newtons (N), where one newton is the force that gives a one-kilogram mass an acceleration of one metre per second squared.

10. Question 10Easy

    What is the SI unit of electric current?

    • A.Volt
    • B.Ohm
    • C.AmpereCorrect
    • D.Watt
    Show solution

    The ampere is the SI unit of electric current.

11. Question 11Easy

    What is the SI unit of time?

    • A.Minute
    • B.SecondCorrect
    • C.Hertz
    • D.Hour
    Show solution

    The second is the SI unit of time.

12. Question 12Easy

    Which type of mirror is used as a rear-view mirror in vehicles?

    • A.Convex mirrorCorrect
    • B.Concave mirror
    • C.Cylindrical mirror
    • D.Plane mirror
    Show solution

    A convex mirror is used because it always forms an erect, diminished image and gives a wider field of view of the traffic behind.

These are 12 of 26 physics questions in the bank. Attempt the rest with instant feedback in the practice drills, or under a clock in the mock tests.