0

Newton's Laws of Motion and Gravity

Description: Test your understanding of Newton's Laws of Motion and Gravity with this comprehensive quiz.
Number of Questions: 15
Created by:
Tags: newton's laws of motion gravity classical mechanics
Attempted 0/15 Correct 0 Score 0

According to Newton's First Law of Motion, an object at rest will remain at rest, and an object in motion will continue moving with the same velocity, unless acted upon by an external force.

  1. True

  2. False


Correct Option: A
Explanation:

This law is also known as the law of inertia.

The measure of an object's resistance to changes in its motion is called:

  1. Mass

  2. Weight

  3. Momentum

  4. Force


Correct Option: A
Explanation:

Mass is an intrinsic property of an object that determines its resistance to acceleration.

Newton's Second Law of Motion states that the acceleration of an object is directly proportional to the net force acting on the object and inversely proportional to its mass.

  1. True

  2. False


Correct Option: A
Explanation:

This law is expressed mathematically as F = ma, where F is the net force, m is the mass, and a is the acceleration.

The unit of force in the International System of Units (SI) is the:

  1. Newton

  2. Kilogram

  3. Meter

  4. Second


Correct Option: A
Explanation:

The newton (N) is defined as the force required to accelerate a mass of one kilogram at a rate of one meter per second squared.

The force of gravity between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

  1. True

  2. False


Correct Option: A
Explanation:

This law is known as Newton's Law of Universal Gravitation.

The acceleration due to gravity on Earth's surface is approximately:

  1. 9.8 m/s^2

  2. 10 m/s^2

  3. 11 m/s^2

  4. 12 m/s^2


Correct Option: A
Explanation:

The acceleration due to gravity on Earth's surface varies slightly depending on location and altitude.

The weight of an object is the force exerted on the object due to:

  1. Gravity

  2. Inertia

  3. Momentum

  4. Friction


Correct Option: A
Explanation:

Weight is a measure of the gravitational force acting on an object.

The relationship between force, mass, and acceleration is described by the equation:

  1. F = ma

  2. F = mv

  3. F = kx

  4. F = mg


Correct Option: A
Explanation:

This equation is known as Newton's Second Law of Motion.

The SI unit of momentum is the:

  1. Newton

  2. Kilogram

  3. Kilogram meter per second

  4. Meter per second


Correct Option: C
Explanation:

Momentum is defined as the product of an object's mass and velocity.

The law of conservation of momentum states that the total momentum of a closed system remains constant.

  1. True

  2. False


Correct Option: A
Explanation:

This law is a fundamental principle of physics.

In the absence of external forces, the center of mass of a system remains:

  1. At rest

  2. In motion

  3. Accelerating

  4. Changing direction


Correct Option: A
Explanation:

This is a consequence of the law of conservation of momentum.

The force that opposes the relative motion of two surfaces in contact is called:

  1. Friction

  2. Gravity

  3. Inertia

  4. Momentum


Correct Option: A
Explanation:

Friction is a force that arises from the interaction of two surfaces in contact.

The coefficient of friction is a measure of the:

  1. Force required to move an object

  2. Resistance to motion between two surfaces

  3. Mass of an object

  4. Velocity of an object


Correct Option: B
Explanation:

The coefficient of friction is a dimensionless quantity that characterizes the frictional interaction between two surfaces.

The angle at which the coefficient of static friction is equal to the coefficient of kinetic friction is called the:

  1. Angle of repose

  2. Angle of incidence

  3. Angle of reflection

  4. Angle of deviation


Correct Option: A
Explanation:

The angle of repose is the angle at which a loose granular material will come to rest on a slope.

The force of gravity is:

  1. A contact force

  2. A non-contact force

  3. A fundamental force

  4. All of the above


Correct Option: D
Explanation:

The force of gravity is a fundamental force that acts between all objects with mass.

- Hide questions