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NTS MCQs

National Testing Service — Complete MCQ Bank

1,084 Questions
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How to prepare for NTS

NTS tests evaluate aptitude, analytical reasoning, quantitative ability, English and subject knowledge for admissions, scholarships and recruitment.

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281
Physics Easy

What is the SI unit of frequency?

  • AWatt
  • BNewton
  • CPascal
  • DHertz
Permalink
Correct Answer: Option D — Hertz
Explanation: Hertz is the SI unit of frequency representing the number of cycles or oscillations per second and is named after German physicist Heinrich Hertz.
Submitted by: PaperMCQs
282
Physics Easy

What is the unit of power in the SI system?

  • AWatt
  • BJoule
  • CNewton
  • DPascal
Permalink
Correct Answer: Option A — Watt
Explanation: The Watt is the SI unit of power named after James Watt and defined as one joule of energy transferred or converted per second.
Submitted by: PaperMCQs
283
Physics Easy

Which property of a body is measured by the amount of matter it contains?

  • AWeight
  • BDensity
  • CMass
  • DVolume
Permalink
Correct Answer: Option C — Mass
Explanation: Mass is the measure of the amount of matter contained in a body and remains constant regardless of location unlike weight which depends on gravitational field strength.
Submitted by: PaperMCQs
284
Physics Easy

What is the SI unit of energy?

  • AJoule
  • BWatt
  • CNewton
  • DPascal
Permalink
Correct Answer: Option A — Joule
Explanation: The Joule is the SI unit of energy defined as the work done when a force of one Newton moves an object one metre in the direction of the force.
Submitted by: PaperMCQs
285
Physics Medium

Which law states that the current through a conductor is directly proportional to the voltage across it?

  • AFaraday's Law
  • BOhm's Law
  • CKirchhoff's Law
  • DCoulomb's Law
Permalink
Correct Answer: Option B — Ohm's Law
Explanation: Ohm's Law states that the current I through a conductor is directly proportional to the voltage V across it at constant temperature expressed as V equals IR.
Submitted by: PaperMCQs
286
Physics Easy

What is the unit of electrical resistance?

  • AVolt
  • BAmpere
  • CWatt
  • DOhm
Permalink
Correct Answer: Option D — Ohm
Explanation: The Ohm named after German physicist Georg Simon Ohm is the SI unit of electrical resistance defined as the resistance that produces a potential difference of one volt per ampere.
Submitted by: PaperMCQs
287
Physics Easy

Which physical quantity is defined as force per unit area?

  • ADensity
  • BPressure
  • CStress
  • DTorque
Permalink
Correct Answer: Option B — Pressure
Explanation: Pressure is defined as force per unit area measured in Pascals in the SI system and applies to fluids and gases exerting force on surfaces equally in all directions.
Submitted by: PaperMCQs
288
Physics Medium

What is the approximate speed of sound in air at room temperature?

  • A343 m/s
  • B150 m/s
  • C1500 m/s
  • D3000 m/s
Permalink
Correct Answer: Option A — 343 m/s
Explanation: Sound travels at approximately 343 metres per second in air at room temperature of about 20 degrees Celsius and this speed increases with temperature.
Submitted by: PaperMCQs
289
Physics Medium

Which type of wave does not require a medium to travel?

  • ASound wave
  • BWater wave
  • CSeismic wave
  • DElectromagnetic wave
Permalink
Correct Answer: Option D — Electromagnetic wave
Explanation: Electromagnetic waves such as light radio waves and X-rays can travel through a vacuum without requiring a medium distinguishing them from mechanical waves like sound.
Submitted by: PaperMCQs
290
Physics Easy

What is the SI unit of electric current?

  • AVolt
  • BOhm
  • CAmpere
  • DWatt
Permalink
Correct Answer: Option C — Ampere
Explanation: The Ampere named after French physicist Andre-Marie Ampere is the SI base unit of electric current representing the flow of one coulomb of charge per second.
Submitted by: PaperMCQs
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