Free Measurements MCQs with Answers

• A. Historical era
• B. Muslim period
• C. British era
• D. Greek period

Explanation: This is a more specific term that refers to the time when Islamic civilization flourished and made significant contributions to various…

• A. Optical
• B. Mathematical
• C. Bio-chemical
• D. Modern

Explanation: Archimedes is often referred to as one of the greatest mathematicians of antiquity.

• A. Newton
• B. Faraday
• C. Galileo
• D. Thales

Explanation: Galileo Galilei, an Italian scientist, made significant contributions to astronomy and physics during the 17th century.

• A. Time
• B. Intensity
• C. Mole
• D. Meter

Explanation: The candela (cd) is the SI unit for luminous intensity. Luminous intensity is a measure of the amount of light emitted in a particular…

• A. Degree or Kelvin
• B. Candela
• C. Mole
• D. Kilogram

Explanation: Temperature can be measured in either degrees Celsius (°C) or Kelvin (K).

• A. Intensity
• B. Electric current
• C. Temperature
• D. Candela

Explanation: The Ampere (A) is the base unit of electric current in the International System of Units (SI).

• A. Derived units
• B. Small units
• C. Positive units
• D. None of these

Explanation: Option D is appropriate in the sense that "supplementary units" is not a standard term.

• A. Kilometers
• B. Seconds
• C. Grams
• D. Kilograms

Explanation: Kilometers (km) are a unit of length commonly used in the metric system. One kilometer is equal to 1,000 meters.

• A. 46.6
• B. 46.55
• C. 45.56
• D. None of these

Explanation: The following is the solution: To round 46.55 to one digit or place after the decimal point, we have to eliminate the last digit in 46.55.

• A. Energy
• B. Electricity
• C. Force
• D. None of these

Explanation: The Newton (N) is indeed the unit of force in the SI system. One Newton is defined as the force required to accelerate a one-kilogram mass…

• A. Molecular Physics
• B. Plasma Physics
• C. Nuclear Physics
• D. Solid state Physics

Explanation: Nuclear physics is the branch of physics that deals with the structure, behavior, and interactions of atomic nuclei.

• A. 3000 BC to 600 AD
• B. 600 AD to 1500 AD
• C. 1500 AD to 1700 AD
• D. 1700 AD to 1750 AD

Explanation: Option D is the correct range for the Physics of the Islamic era. During this period, scholars in the Islamic world made substantial…

• A. Planck
• B. Einstein
• C. Maxwell
• D. Rutherford

Explanation: Albert Einstein, a German physicist, introduced the theory of relativity in two parts: the special theory of relativity in 1905 and the…

• A. Force, weight and time
• B. Mass, length and time
• C. Mass, length and force
• D. Mass, energy and time

Explanation: B is the correct answer. The MKS system is based on three fundamental units: mass (kilogram), length (meter), and time (second).

• A. Gram, dyne and second
• B. Kilogram, centimetre and second
• C. Kilogram, Newton and second
• D. Kilogram, meter and second

Explanation: D is the correct answer. In the MKS system, the kilogram is the unit of mass, the meter is the unit of length, and the second is the unit…

• A. Fundamental units
• B. Derived units
• C. Basic units
• D. None of the above

Explanation: Derived units are formed by combining fundamental units according to the equations of physics or other relationships.

• A. Newton
• B. Meter/sec
• C. Kilogram/meter3
• D. Second

Explanation: The second (s) is a fundamental unit of time in the International System of Units (SI).

• A. Kilogram
• B. Ampere
• C. Metre3
• D. Kelvin

Explanation: Cubed meters (m³) is not a fundamental unit in SI. While the meter (m) is a fundamental unit for length, the cubic meter is a derived…

• A. Time
• B. Distance
• C. Light
• D. Velocity

Explanation: The light year is primarily used to express astronomical distances. It represents the distance that light travels in one year in a vacuum.

• A. ML T-1
• B. ML T-2
• C. LT-2
• D. ML2T

Explanation: The following is the solution: Weight (W) = Mass × Acceleration . . . . . .