Physical Quantities & Units

Total Questions: 36

1 - Stone is the unit of ----?

A ) Weight ✅
B ) Mass
C ) Capacity
D ) None

2 - Which of the following is unit of length?

A ) Angstrom ✅
B ) Joule
C ) Newton
D ) Dalton

3 - What is the minimum velocity required to put a satellite in orbit around Earth?

A ) Escape velocity
B ) Terminal velocity
C ) Gravitational velocity
D ) Orbital velocity ✅

4 - The product of the mass and the velocity is known as ----:

A ) Momentum ✅
B ) Velocity
C ) Distance
D ) None of these

5 - Mass is same physical Quarantine as -------:

A ) Inertia ✅
B ) Velocity
C ) Distance
D ) None of these

6 - What term is used to describe the rate of displacement?

A ) Force
B ) Velocity ✅
C ) Acceleration
D ) Momentum

7 - Which quantity is not a vector quantity?

A ) Speed ✅
B ) Displacement
C ) Velocity
D ) Acceleration

8 - Tape speed is measured in ----:

A ) Inch per second ✅
B ) Feet per second
C ) Enzo Ferrari
D ) None of these

9 - Newton is the unit of -----:

A ) Velocity
B ) Acceleration
C ) Force ✅
D ) Power

10 - Parsec is a unit to measure -----:

A ) Distance ✅
B ) Force
C ) Time
D ) Speed

11 - What is the unit of pressure?

A ) Pascal ✅
B ) Ampere
C ) Coulomb
D ) Length

12 - Analog signal is measured in?

A ) Pulses
B ) Volt ✅
C ) Hertz
D ) Watts

13 - Radio waves frequency is measured in -------?

A ) Hertz ✅
B ) Volt
C ) Meter
D ) Cycle/sec

14 - Electric current is measured in ------:

A ) Amperes ✅
B ) Kilometers
C ) Watts
D ) Volt

15 - Meter is the unit of ---:

A ) Mass
B ) Length ✅
C ) Speed
D ) Time

16 - The system international S.I Unit of temperature is ------:

A ) Kelvin ✅
B ) Fahrenheit
C ) Celsius
D ) Centigrade

17 - Joule is the unit of ------:

A ) Momentum
B ) Luminous
C ) Energy ✅
D ) None of these

18 - What is unit of heat ?

A ) Ampere
B ) Joule ✅
C ) Volt
D ) Coulombs

Explanation:

Q: What is the unit of Heat?
✅ Correct Answer:
➡️ Joule (J)

One joule is the amount of energy used when a force of one newton moves an object one meter in the direction of the force. 

📘 Explanation for Exams:

  •  ✅ Joule is the SI unit of heat, energy, and work. 
  • Heat is a form of energy, so its SI unit is the Joule (J).
  • ✅  In some contexts, especially older ones or in food energy:
    • Calorie (cal) is also used.
    • 1 calorie = 4.184 joules

  Watt (Unit of Power), Celsius (Unit of Temperature),✅ Newton (Unit of Force)

19 - Unit if illumination is ----:

A ) Lux ✅
B ) Joule
C ) Diet
D ) None of these

20 - Which word does NOT belong with the others?

A ) Ounce ✅
B ) Inch
C ) Centimeter
D ) Yard

21 - What is unit of electric charge?

A ) Ampere
B ) Coulomb ✅
C ) Watt
D ) Joule

22 - The unit of electric current is--------:

A ) Volt
B ) Ampere ✅
C ) Ohm
D ) Coulomb

23 - The unit of electric resistance is ------

A ) Ampere
B ) Ohm ✅
C ) Volt
D ) Coulomb

24 - The unit of electric power is -----:

A ) Joule
B ) Watt ✅
C ) Ampere
D ) Volt

25 - The unit of magnetic field strength is:

A ) Gauss
B ) Ampere
C ) Tesla ✅
D ) Coulomb

26 - The standard unit of time is ------:

A ) Second ✅
B ) Hour
C ) Day
D ) Minutes

27 - The SI unit of mass is -----:

A ) Pound
B ) Stone
C ) Kilogram ✅
D ) Gram

28 - The unit of energy in the SI system is:

A ) Ampere
B ) Joule ✅
C ) Watt
D ) Kilowatt

29 - What is the unit of work done ?

A ) Joule ✅
B ) Watt
C ) Ampere
D ) Kilowatt

30 - What unit is used to measure energy in the field of nutrition?

A ) Joule
B ) Watt
C ) Calorie ✅
D ) Kilogram

31 - What is the SI unit of resistance?

A ) Joule
B ) Watt
C ) Ohm ✅
D ) Volt

32 - Which of the following is used to measure temperature?

A ) Barometer
B ) Thermometer ✅
C ) Altimeter
D ) Hydrometer

33 - The unit of speed is ----:

A ) Kilometer per hour
B ) Meter per second
C ) Mile per hour
D ) All of these ✅

34 - The unit of luminous intensity is ------:

A ) Lux
B ) Candela ✅
C ) Watt
D ) Joule

35 - Which of the following is used to measure the temperature of the earth?

A ) Barometer
B ) Seismograph
C ) Thermometer ✅
D ) Geiger counter

36 - What is the unit of frequency in the SI system?

A ) Ampere
B ) Watt
C ) Lux
D ) Hertz ✅