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Questions on topic Laws of Motion from Class 12 CBSE Physics

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Q1. What is Newton's first law of motion?

A body at rest will remain at rest unless acted upon by a net external force.

The force acting on an object is equal to the mass of that object times its acceleration.

For every action, there is an equal and opposite reaction.

The acceleration of an object is directly proportional to the net force acting on it.

Q2. In which scenario does Newton's second law of motion apply?

An object moving with constant velocity.

An object at rest.

An object experiencing a net external force.

An object in free fall.

Q3. Which of the following is a unit of force?

Kilogram

Newton

Joule

Meter

Q4. If an object is in equilibrium, which of the following statements is true?

The net force acting on the object is zero.

The object must be at rest.

The object is accelerating.

The object is in motion.

Q5. What does the coefficient of friction depend on?

The mass of the object.

The surface area in contact.

The nature of the surfaces in contact.

The speed of the object.

Q6. In a frictionless environment, if two objects collide, what will be conserved?

Mass

Momentum

Energy

Both momentum and energy

Q7. What is the formula for calculating the weight of an object?

Weight = mass × distance

Weight = mass × acceleration due to gravity

Weight = mass × velocity

Weight = mass × force

Q8. Which of the following is an example of Newton's third law of motion?

A car accelerates when the driver presses the gas pedal.

A rocket launches into space.

A swimmer pushes against the water to move forward.

A ball rolls down a hill.

Q9. What is the effect of increasing the mass of an object on its acceleration, assuming the force remains constant?

Acceleration increases.

Acceleration decreases.

Acceleration remains the same.

Acceleration becomes zero.

Q10. Which of the following statements is true regarding inertia?

Inertia is the tendency of an object to resist changes in its state of motion.

Inertia only applies to moving objects.

Inertia is directly proportional to the velocity of an object.

Inertia can be overcome by applying force.

Questions on topic Laws of Motion from Class 12 CBSE Physics

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