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National Testing Agency (NTA)12 Questions

Physics MCQs

Practice Physics multiple-choice questions for National Testing Agency (NTA) competitive exams. Each question includes the correct answer and a short explanation, and past-paper questions are marked so you can revise both repeated and fresh material in one place.

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The net force is in the direction of motion.
The net force is zero.
The net force is increasing over time.
The net force is constant and non-zero.
ExplanationAccording to Newton's First Law of Motion, an object maintains a constant velocity (constant speed in a straight line) if the net external force acting on it is zero.
Volt
Ampere
Ohm
Watt
ExplanationThe Ohm is the SI unit of electrical resistance, named after Georg Simon Ohm.
The force is moving it forward
There is no net force acting on the object
The force is increasing over time
The force is equal to the speed
ExplanationAccording to Newton's First Law, an object in motion stays in uniform motion unless acted upon by an external net force.
Volt
Ampere
Ohm
Watt
ExplanationThe Ohm is the SI unit for electrical resistance.
Proton
Neutron
Electron
Positron
ExplanationElectrons are subatomic particles with a characteristic negative charge.
It increases
It decreases
It remains constant
It becomes zero
ExplanationObjects in free fall near Earth's surface accelerate at a constant rate of approximately 9.8 m/s².
Gauss's Law
Coulomb's Law
Ohm's Law
Ampere's Law
ExplanationCoulomb's Law quantifies the electrostatic force between charged particles.
Watt
Joule
Newton
Pascal
ExplanationThe Joule is the standard SI unit for work, energy, and heat.
F = m * a
F = m / a
F = m + a
F = m - a
ExplanationForce equals mass multiplied by acceleration.
It increases
It decreases
It stays the same
It becomes zero
ExplanationThis is known as the Doppler effect, where frequency decreases as the source moves away.
Speed
Wavelength
Frequency
Direction
ExplanationFrequency is determined by the source and does not change when light enters a new medium.
6.67 x 10^-11 Nm²/kg²
9.8 m/s²
3.0 x 10^8 m/s
8.314 J/mol·K
ExplanationThis is the universal gravitational constant used in Newton's law of gravitation.

Frequently Asked Questions

Are these Physics MCQs free?

Yes. Every Physics MCQ on this page is free to practice, including the correct answer and explanation.

Do these include past-paper questions?

Yes — questions sourced from past papers are clearly marked with a "Past Paper" badge, alongside fresh practice questions.

Which exams do these Physics MCQs help with?

They are aimed at National Testing Agency (NTA) and related Pakistani competitive exams that test Physics.

How should I practice subject-wise MCQs?

Attempt each question first, then reveal the answer and read the explanation. Short, focused sessions on one subject work better than long unstructured reading.

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