Mechanics

Motion, forces, energy, momentum, and Newton’s laws.

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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

Gravitational force between two masses is?

Answer: Always attractive

Newton's law of gravitation is always attractive.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 03

In an elastic collision,

Answer: Both momentum and kinetic energy are conserved

Perfectly elastic collisions conserve both momentum and kinetic energy.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 04

Power is defined as?

Answer: Rate of doing work

Power P = W/t (or F·v).

Shahzad Mahota @shahzad-mahota

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QUESTION NO 05

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 06

Momentum is the product of?

Answer: Mass and velocity

Linear momentum p = mv.

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QUESTION NO 07

Weight of a body is?

Answer: mg

Weight W = mg near Earth's surface.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 08

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 09

Angular momentum of a particle is?

Answer: r × p

L = r × p for a particle about a point.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 10

Power is defined as?

Answer: Rate of doing work

Power P = W/t (or F·v).

Shahzad Mahota @shahzad-mahota

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

Gravitational force between two masses is?

In an elastic collision,

Power is defined as?

Centripetal force is directed?

Momentum is the product of?

Weight of a body is?

SI unit of force is?

Angular momentum of a particle is?

Power is defined as?

Mechanics

More topics in Physics

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Electricity & Magnetism

Mechanics

Modern Physics

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Thermodynamics

Waves & Sound

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

Explanation

Gravitational force between two masses is?

Explanation

In an elastic collision,

Explanation

Power is defined as?

Explanation

Centripetal force is directed?

Explanation

Momentum is the product of?

Explanation

Weight of a body is?

Explanation

SI unit of force is?

Explanation

Angular momentum of a particle is?

Explanation

Power is defined as?

Explanation