Physics ยท Science General

Units and Measurement

998 Questions

Master the fundamentals of physics with these practice questions on units and measurement. The topics include fundamental SI units, derived quantities, and specific units for power, force, and light. These questions are essential for building a strong foundation for competitive exams.

SI fundamental unitsUnits of powerDerived quantities unitsThermal energy unitsVolume measurement unitsElectric current units

Units and Measurement Questions

Multiple choice

What is the SI unit of electric current?

  1. Ampere

  2. Volt

  3. Ohm

  4. Coulomb
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The SI unit of electric current is the ampere (A).

Multiple choice

What is the SI unit of temperature?

  1. Kelvin

  2. Celsius

  3. Fahrenheit

  4. Rankine
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The SI unit of temperature is the kelvin (K).

Multiple choice

What is the SI unit of luminous intensity?

  1. Candela

  2. Lumen

  3. Lux

  4. Nit
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The SI unit of luminous intensity is the candela (cd).

Multiple choice

What is the SI unit of amount of substance?

  1. Mole

  2. Avogadro's number

  3. Molar mass

  4. Molar volume
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The SI unit of amount of substance is the mole (mol).

Multiple choice

What is the SI unit of frequency?

  1. Hertz

  2. Radian per second

  3. Cycle per second

  4. Revolutions per minute
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The SI unit of frequency is the hertz (Hz).

Multiple choice

What is the SI unit of force?

  1. Newton

  2. Dyne

  3. Pound-force

  4. Kilogram-force
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The SI unit of force is the newton (N).

Multiple choice

What is the SI unit of energy?

  1. Joule

  2. Calorie

  3. British thermal unit

  4. Electronvolt
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The SI unit of energy is the joule (J).

Multiple choice

What is the SI unit of power?

  1. Watt

  2. Horsepower

  3. British thermal unit per hour

  4. Kilowatt-hour
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The SI unit of power is the watt (W).

Multiple choice

What is the SI unit of pressure?

  1. Pascal

  2. Atmosphere

  3. Bar

  4. Pound per square inch
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The SI unit of pressure is the pascal (Pa).

Multiple choice

What is the SI unit of electric charge?

  1. Coulomb

  2. Electron

  3. Proton

  4. Neutron
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The SI unit of electric charge is the coulomb (C).

Multiple choice

What is the SI unit of electric potential?

  1. Volt

  2. Joule per coulomb

  3. Electronvolt

  4. Farad
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The SI unit of electric potential is the volt (V).

Multiple choice

What is the SI unit of capacitance?

  1. Farad

  2. Coulomb per volt

  3. Joule per coulomb squared

  4. Henry
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The SI unit of capacitance is the farad (F).

Multiple choice

The SI unit of electric current is:

  1. Ampere

  2. Volt

  3. Ohm

  4. Watt
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The ampere (A) is the SI unit of electric current, representing the flow of electric charge per unit time.

Multiple choice

What is the basic unit of energy in Quantum Mechanics?

  1. Electronvolt (eV)

  2. Joule (J)

  3. Watt (W)

  4. British Thermal Unit (BTU)
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The electronvolt (eV) is the basic unit of energy in Quantum Mechanics, representing the energy gained by an electron when it moves through a potential difference of one volt.

Multiple choice

What is the SI unit of mass?

  1. Kilogram

  2. Gram

  3. Pound

  4. Ounce

  5. Carat
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The SI unit of mass is kilogram (kg).