Free Measurements MCQs with Answers
262 Measurements MCQs from Physics, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Physical quantities are expressed with SI base and derived units, while measurement limits are described through accuracy, precision, absolute and percentage error, and significant figures. Dimensional analysis checks equations, derives relationships and detects inconsistent units, but it cannot determine numerical constants or distinguish quantities with identical dimensions.
Last updated
262 questions · page 7 of 14
- A. Newton
- B. Poundal
- C. Dyne
- D. Watt
Explanation: The newton (N) is the SI unit of force in the MKS system. It is defined as the force required to accelerate a one-kilogram mass by one…
Correct answer: Newton- A. Erg
- B. Dyne
- C. Watt
- D. Joule
Explanation: The joule (J) is the SI unit of work and energy in the MKS system. One joule is equal to the work done or energy transferred when a force…
Correct answer: Joule- A. Dyne
- B. Erg
- C. Watt
- D. Joule
Explanation: The watt (W) is the SI unit of power in the MKS system. One watt is equal to one joule of energy per second.
Correct answer: Watt- A. Micro
- B. Half Year
- C. Angstrom
- D. Light Year
Explanation: "Half Year" is a unit of time, but it is not a standard unit in the SI system.
Correct answer: Half Year- A. Foot pound
- B. Erg
- C. Joule
- D. Dyne
Explanation: The erg is the absolute unit of work in the CGS system. It is defined as the work done when a force of one dyne is applied over a distance…
Correct answer: Erg- A. Centimetre/sec
- B. Centimetre/sec2
- C. Meter/sec
- D. Meter/sec2
Explanation: The meter/second (m/s) is the standard unit of velocity in the MKS system.
Correct answer: Meter/sec- A. Acceleration
- B. Velocity
- C. Surface tension
- D. Momentum
Explanation: Velocity is the rate of change of displacement with respect to time. The formula for velocity (v) is given by the change in displacement…
Correct answer: Velocity- A. Volume
- B. Velocity
- C. Time
- D. Force
Explanation: Time is considered a fundamental quantity in the SI system. It is one of the seven base units and is measured in seconds (s).
Correct answer: Time- A. Mass
- B. Length
- C. Time
- D. Velocity
Explanation: Velocity is a derived quantity. It is defined as the rate of change of displacement with respect to time.
Correct answer: Velocity- A. Kilowatt-hour
- B. Joule
- C. Dyne
- D. Kilowatt
Explanation: The kilowatt (kW) is a unit of power and is a correct answer. One kilowatt is equal to 1,000 watts.
Correct answer: Kilowatt- A. Dyne
- B. Atmosphere
- C. Pascal
- D. cm of Hg
Explanation: The Pascal (Pa) is the correct unit of pressure in the MKS system. It is defined as one Newton per square meter.
Correct answer: Pascal- A. Kilogram
- B. Meter
- C. Centimetre
- D. Second
Explanation: The meter is defined in terms of the speed of light in a vacuum (c) and the duration of a specific number of oscillations of a cesium-133…
Correct answer: Meter- A. Mechanics
- B. Statistical Mechanics
- C. Thermodynamics
- D. Electrostatics
Explanation: Mechanics is the correct answer. It is the branch of physics that studies the motion of objects and the forces acting upon them.
Correct answer: Mechanics- A. Chemistry
- B. Biology
- C. Geography
- D. Physics
Explanation: Physics is the correct answer. It is the branch of science that deals with the fundamental principles governing the behavior of matter and…
Correct answer: Physics- A. Fundamental Quantities
- B. Definition
- C. Experiment and Measurement
- D. Description of facts
Explanation: C is a correct statement. Physics relies heavily on experimental observations and measurements.
Correct answer: Experiment and Measurement- A. Ibn-al-Haitham
- B. Al-Beruni
- C. Al-Khawarizm
- D. Jabir bin Hayyan
Explanation: Al-Khawarizmi, often referred to as the "father of algebra," was a Persian mathematician, astronomer, and geographer who made significant…
Correct answer: Al-Khawarizm- A. Mass
- B. Weight
- C. Volume
- D. Density
Explanation: Mass is a fundamental property of matter that measures the amount of substance in an object.
Correct answer: Mass- A. Watt
- B. J.s
- C. J/s
- D. J
Explanation: The joule is the correct unit for energy. It measures the amount of work done or energy transferred when a force of one newton acts over a…
Correct answer: J- A. Area
- B. Volume
- C. Length
- D. Velocity
Explanation: Length is a fundamental quantity. It is a fundamental property of matter, and it is typically measured in meters (m) in the International…
Correct answer: Length- A. Mechanics
- B. Acoustics
- C. Relativity
- D. Optics
Explanation: Optics is the correct answer. Ibn al-Haitham made groundbreaking contributions to the field of optics.
Correct answer: Optics