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 pairs is not correctly matched?

  1. SI unit of temperature : Kelvin

  2. SI unit of mass : Kilogram

  3. SI unit of pressure : Pascal per square metre

  4. SI unit of weight : Newton

  5. SI unit of length : Metre
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

SI unit of pressure is Pascal or Nm-2.

Multiple choice

Which of the following is an example of fundamental unit?

  1. Density

  2. Acceleration

  3. Force

  4. Length

  5. Speed
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The units which are independent or cannot be derived from any other unit is called fundamental unit. Every unit of length is fundamental unit (irrespective of the system to which it belongs); millimeter, centimeter, meter, kilometer.

Multiple choice

What is the SI unit of angular velocity?

  1. Meter per second

  2. Square meter per second

  3. Radians per second

  4. Meter per square second

  5. Radians per square second
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Angular velocity is considered to be a vector quantity, though it is often referred to as a pseudovector. The SI unit for angular velocity is the radian per second.