Physics · 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

Which of the following is the SI unit of time?

  1. Second

  2. Minute

  3. Hour

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

The SI unit of time is the second (s).

Multiple choice

What is the SI unit of electric current?

  1. Ampere

  2. Volt

  3. Ohm

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

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

Multiple choice

Which of the following 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

Which of the following 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 equivalent dose?

  1. Sievert

  2. Gray

  3. Rad

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

The SI unit of equivalent dose is the sievert (Sv).

Multiple choice

Which of the following is the SI unit of pressure?

  1. Pascal

  2. Bar

  3. Atmosphere

  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 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

Which of the following is the SI unit of power?

  1. Watt

  2. Horsepower

  3. British thermal unit per hour

  4. Calorie per second
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 electric potential?

  1. Volt

  2. Coulomb

  3. Ohm

  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

Which of the following is the SI unit of electric resistance?

  1. Ohm

  2. Volt

  3. Ampere

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

The SI unit of electric resistance is the ohm (Ω).

Multiple choice

What is the unit of measurement for the Raman shift?

  1. Centimeters

  2. Meters

  3. Nanometers

  4. Wavenumbers
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The Raman shift is typically measured in wavenumbers.

Multiple choice

What is the SI unit of length?

  1. Meter

  2. Centimeter

  3. Kilometer

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

The SI unit of length is the meter (m).

Multiple choice

What is the SI unit of mass?

  1. Kilogram

  2. Gram

  3. Pound

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

The SI unit of mass is the kilogram (kg).

Multiple choice

What is the SI unit of time?

  1. Second

  2. Minute

  3. Hour

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

The SI unit of time is the second (s).