Physics

Explore physics concepts from mechanics and waves to modern physics. Practice quizzes covering theory, formulas, and real-world applications for students and competitive exam aspirants.

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QUESTION NO 01

Newton's first law is also known as the law of?

Answer: Inertia

Newton's first law states that a body remains at rest or in uniform motion unless acted upon by a net external force — the law of inertia.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 02

SI unit of force is?

Answer: Newton

Force is measured in newtons (N), where 1 N = 1 kg·m/s².

Shahzad Mahota @shahzad-mahota

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QUESTION NO 03

Acceleration is the rate of change of?

Answer: Velocity

Acceleration a = Δv/Δt is the rate of change of velocity.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 04

A body moving with constant speed in a straight line has?

Answer: Zero acceleration

Constant velocity means acceleration is zero.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 05

Work done is zero when force is?

Answer: Perpendicular to displacement

W = F·s·cosθ; if θ = 90°, work is zero.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 06

Kinetic energy of a body of mass m and speed v is?

Answer: (1/2)mv²

Translational kinetic energy K = ½mv².

Shahzad Mahota @shahzad-mahota

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QUESTION NO 07

Momentum is the product of?

Answer: Mass and velocity

Linear momentum p = mv.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 08

Impulse equals the change in?

Answer: Momentum

Impulse J = FΔt = Δp.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 09

Centripetal force is directed?

Answer: Towards the centre of the circle

Centripetal force always points toward the centre of circular motion.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 10

Gravitational force between two masses is?

Answer: Always attractive

Newton's law of gravitation is always attractive.

Shahzad Mahota @shahzad-mahota

52 Quizzes

430 Questions

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Physics

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Newton's first law is also known as the law of?

SI unit of force is?

Acceleration is the rate of change of?

A body moving with constant speed in a straight line has?

Work done is zero when force is?

Kinetic energy of a body of mass m and speed v is?

Momentum is the product of?

Impulse equals the change in?

Centripetal force is directed?

Gravitational force between two masses is?

Physics

Explore

Newton's first law is also known as the law of?

Explanation

SI unit of force is?

Explanation

Acceleration is the rate of change of?

Explanation

A body moving with constant speed in a straight line has?

Explanation

Work done is zero when force is?

Explanation

Kinetic energy of a body of mass m and speed v is?

Explanation

Momentum is the product of?

Explanation

Impulse equals the change in?

Explanation

Centripetal force is directed?

Explanation

Gravitational force between two masses is?

Explanation