If no external force acts on a system of bodies, the total linear momentum of the system of bodies remains constant. Which law states this? (1) Newton first law (2) Newton second law (3) Newton third law (4) Principle of conservation of linear momentum

If no external force acts on a system of bodies, the total linear momentum of the system of bodies remains constant. Which law states this? (1) Newton first law (2) Newton second law (3) Newton third law (4) Principle of conservation of linear momentum
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(4) Principle of conservation of linear momentum Explanation: Principle of conservation of linear momentum states If no external force acts on a system of bodies, the total linear momentum of the system of bodies remains constant.
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If no external force acts on a system of bodies, the total linear momentum of the system of bodies remains constant. Which law states this? (1) Newton first law (2) Newton second law (3) Newton third law (4) Principle of conservation of linear momentum

Description : If no external force acts on a system of bodies, the total linear momentum of the system of bodies remains constant. Which law states this? (1) Newton first law (2) Newton second law (3) Newton third law (4) Principle of conservation of linear momentum

Last Answer : (4) Principle of conservation of linear momentum Explanation: Principle of conservation of linear momentum states if no external force acts on a system of bodies, the total linear momentum of the system of bodies remains constant.

If no external force acts on a system of bodies, the total linear momentum of the system of bodies remains constant. Which law states that? (1) Newton’s first law (2) Newton’s Second Law (3) Newton’s Third Law (4) Principle of conservation of linear momentum

Description : If no external force acts on a system of bodies, the total linear momentum of the system of bodies remains constant. Which law states that? (1) Newton’s first law (2) Newton’s Second Law (3) Newton’s Third Law (4) Principle of conservation of linear momentum

Last Answer : (4) Principle of conservation of linear momentum Explanation: Conservation of linear momentum. The principle that the linear momentum of a system has constant magnitude and direction if the system is subjected to no external force. Also called law of conservation of linear momentum

What is the Momentum law that states that the total momentum of an object is constant if no outside force acts on it?

Description : What is the Momentum law that states that the total momentum of an object is constant if no outside force acts on it?

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What states that the net change in the total energy of the system during a process is equal to the difference between the total energy entering and the total energy leaving the system during that process?  A. Third law of thermodynamics  B. Conservation of energy principle  C. Second law of thermodynamics  D. Conservation of mass principle

Description : What states that the net change in the total energy of the system during a process is equal to the difference between the total energy entering and the total energy leaving the system during ... Conservation of energy principle  C. Second law of thermodynamics  D. Conservation of mass principle

Last Answer : Conservation of energy principle

What states that the net mass transfer to or from a system during a process is equal to the net change in the total mass of the system during that process?  A. Third law of thermodynamics  B. Conservation of energy principle  C. Second law of thermodynamic  D. Conservation of mass principle

Description : What states that the net mass transfer to or from a system during a process is equal to the net change in the total mass of the system during that process?  A. Third law of thermodynamics  B. Conservation of energy principle  C. Second law of thermodynamic  D. Conservation of mass principle

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The passengers standing in a bus fall in the backward direction when the stationary bus begins to move. Which of the following laws explains this situation? (1) Newton's First Law of Motion (2) Newton's Third Law of Motion (3) Newton's Second Law of Motion (4) The Law of Conservation of Momentum

Description : The passengers standing in a bus fall in the backward direction when the stationary bus begins to move. Which of the following laws explains this situation? (1) Newton's First Law of Motion (2) Newton's Third Law of Motion (3) Newton's Second Law of Motion (4) The Law of Conservation of Momentum

Last Answer : (1) Newton's First Law of Motion Explanation: According to Newton's first law of motion (law of inertia) a body either at rest or in uniform motion will remain so unless acted on by a force When the passengers are standing on the bus, they (and the bus) are in a state of uniform motion.

A jet engine works, on the principle of conservation of - (1) linear momentum (2) angular momentum (3) energy (4) mass

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Last Answer : (1) linear momentum Explanation: Linear momentum is a vector quantity defined as the product of an object's mass, m, and its velocity, v. Linear momentum is denoted by the letter p and is called ... for short: Note that a body's momentum is always in the same direction as its velocity vector.

A rocket works on the principle of conservation of ______. (1) mass (2) linear momentum (3) energy (4) angular momentum

Description : A rocket works on the principle of conservation of ______. (1) mass (2) linear momentum (3) energy (4) angular momentum

Last Answer : (2) linear momentum Explanation: A rocket works by expelling gases from one end at a very high velocity. The escaping gases have a very high speed and this with their mass translates to a very large momentum.

Assertion When a charged particle moves perpendicular to a uniform magnetic field then its momentum remains constant. Reason Magnetic force acts perpe

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The statement that the sum of the kinetic and potential energies of a particle in the earth's gravitational field is constant is known as a.Principle of conservation of mechanical energy b.Law of gravitation c.Newton's law d.Principle of conservation of momentum e.Law of nature

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Last Answer : a. Principle of conservation of mechanical energy

During planetary motion which of the following remains constant? a.Augular speed b.Linear velocity c.Angular acceleration d.Total angular momentum e.All of the above

Description : During planetary motion which of the following remains constant? a.Augular speed b.Linear velocity c.Angular acceleration d.Total angular momentum e.All of the above

Last Answer : b. Linear velocity

In planetary motion a.The total angular momentum remains constant b.The total linear momentum remains constant c.The total linear momentum is zero d.The total angular momentum is zero e.None of the above

Description : In planetary motion a.The total angular momentum remains constant b.The total linear momentum remains constant c.The total linear momentum is zero d.The total angular momentum is zero e.None of the above

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A jet engine works on the principle of a.Conservation of energy b.Conservation of mass and momentum c.Conservation of linear mementum d.Conservation of energy and momentum e.Conservation of mass

Description : A jet engine works on the principle of a.Conservation of energy b.Conservation of mass and momentum c.Conservation of linear mementum d.Conservation of energy and momentum e.Conservation of mass

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A rocket works on the principle of conservation of (a) Mass (b) Energy (c) Linear momentum (d) Angular momentum

Description : A rocket works on the principle of conservation of (a) Mass (b) Energy (c) Linear momentum (d) Angular momentum

Last Answer : Ans:(c)

Newton's second law states that the net force acting on a body is equal to the body's time rate of change of: w) acceleration x) mass y) momentum z) inertia

Description : Newton's second law states that the net force acting on a body is equal to the body's time rate of change of: w) acceleration x) mass y) momentum z) inertia

Last Answer : ANSWER: Y -- MOMENTUM

Plank's constant has the dimensions of (1) energy (2) linear momentum (3) angular momentum (4) force

Description : Plank's constant has the dimensions of (1) energy (2) linear momentum (3) angular momentum (4) force

Last Answer : (1) energy Explanation: The Planck's constant (h) can be defined as a pro-portionality constant that relates the energy (E) of a photon to the frequency (?) of its associated electro-magnetic ... Planck constant is named after Max Planck, the instigator of quantum theory, who discovered it in 1900.

When net torque is zero, will be constant - (1) force (2) angular momentum (3) linear momentum (4) acceleration

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Plank’s constant has the dimensions of : (1) energy (2) linear momentum (3) angular momentum (4) force

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State the law of conservation of linear momentum. It is a consequence of which law?

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An object at rest will remain at rest and an object in motion will remain in motion until and unless it is acted upon by an external force. This is Newton's – (1) First law (2) Second law (3) Third law (4) Fourth law

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Which of the following statements is TRUE about an ELASTIC collision between two particles? Is it true that: w) neither particle loses any of its kinetic energy x) neither particle loses any of its momentum y) the velocity gained by one particle is equal to that lost by the other z) the total kinetic energy before and after the collision remains constant

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If a body moves with a constant speed in a circle – (1) no work is done on it (2) no force acts on it (3) no acceleration is produced in it (4) its velocity remains constant

Description : If a body moves with a constant speed in a circle – (1) no work is done on it (2) no force acts on it (3) no acceleration is produced in it (4) its velocity remains constant

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If a body moves with a constant speed in a circle (1) no work is done on it (2) no force acts on it (3) no acceleration is produced in it (4) its velocity remains constant

Description : If a body moves with a constant speed in a circle (1) no work is done on it (2) no force acts on it (3) no acceleration is produced in it (4) its velocity remains constant

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Bernoulli's equation is dependent on the (A) First law of thermodynamics(B) Third law of thermodynamics(C) Law of conservation of momentum(D) None of these

Description : Bernoulli's equation is dependent on the (A) First law of thermodynamics (B) Third law of thermodynamics (C) Law of conservation of momentum (D) None of these

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Hydraulic brakes function on the principle of (A) Law of conservation of momentum (B) Law of conservation of energy (C) Pascal’s law (D) None of the above

Description : Hydraulic brakes function on the principle of (A) Law of conservation of momentum (B) Law of conservation of energy (C) Pascal’s law (D) None of the above

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What is meant by the principle of conservation of momentum ?

Description : What is meant by the principle of conservation of momentum ?

Last Answer : If no force other than the action of a single object acts on more than one object, their total momentum will not change in any given direction. That is , when two objects collide , the sum of the momentum before and after the collision is always the same.

The working of a rocket is based on the principle of: (1) Conservation of momentum (2) Conservation of mass (3) Conservation of energy (4) Conservation of angular momentum

Description : The working of a rocket is based on the principle of: (1) Conservation of momentum (2) Conservation of mass (3) Conservation of energy (4) Conservation of angular momentum

Last Answer : (1) Conservation of momentum Explanation: The operation of a rocket illustrates the conservation of momentum. Just before launching, the momentum of the rocket is zero. When the rocket is fired ... rocket acquires a momentum of equal magnitude in opposite direction. Thus the rocket moves upwards.

Which conservation principle is applicable in the case of the motion of a rocket? (1) Conservation of mass (2) Conservation of charge (3) Conservation of momentum (4) Conservation of energy

Description : Which conservation principle is applicable in the case of the motion of a rocket? (1) Conservation of mass (2) Conservation of charge (3) Conservation of momentum (4) Conservation of energy

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The working of a rocket is based on the principle of: (1) Conservation of momentum (2) Conservation of mass (3) Conservation of energy (4) Conservation of angular momentum

Description : The working of a rocket is based on the principle of: (1) Conservation of momentum (2) Conservation of mass (3) Conservation of energy (4) Conservation of angular momentum

Last Answer : Conservation of momentum

Which conservation principle is applicable in the case of the motion of a rocket? (1) Conservation of mass (2) Conservation of charge (3) Conservation of momentum (4) Conservation of energy

Description : Which conservation principle is applicable in the case of the motion of a rocket? (1) Conservation of mass (2) Conservation of charge (3) Conservation of momentum (4) Conservation of energy

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Which of the following statements is incorrect? (a) The mass of a body is not the same as its weight (b) Mass is a measure of quantity of matter whereas weight is a force (c) Mass of a body varies from place to place but its weight remains constant (d) In the MKS system, mass is expressed in kilogram and weight in newton

Description : Which of the following statements is incorrect? (a) The mass of a body is not the same as its weight (b) Mass is a measure of quantity of matter whereas weight is a force (c) Mass of a ... but its weight remains constant (d) In the MKS system, mass is expressed in kilogram and weight in newton

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What states that if two bodies are in thermal equilibrium with a third body, they are also in equilibrium with each other?  A. Zeroth law of thermodynamics  B. First law of thermodynamics  C. Second law of thermodynamics  D. Third law of thermodynamics

Description : What states that if two bodies are in thermal equilibrium with a third body, they are also in equilibrium with each other?  A. Zeroth law of thermodynamics  B. First law of thermodynamics  C. Second law of thermodynamics  D. Third law of thermodynamics

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If two bodies of different masses, initially at rest, are acted upon by the same force for the same time, then the both bodies acquire the same - (1) velocity (2) momentum (3) acceleration (4) kinetic energy

Description : If two bodies of different masses, initially at rest, are acted upon by the same force for the same time, then the both bodies acquire the same - (1) velocity (2) momentum (3) acceleration (4) kinetic energy

Last Answer : (2) momentum Explanation: If two bodies of different masses, initially at rest, are acted upon by the same force for the same time, then the both bodies acquire the same momentum.

If two bodies of different masses, initially at rest, are acted upon by the same force for the same time, then the both bodies acquire the same - (1) velocity (2) momentum (3) acceleration (4) kinetic energy

Description : If two bodies of different masses, initially at rest, are acted upon by the same force for the same time, then the both bodies acquire the same - (1) velocity (2) momentum (3) acceleration (4) kinetic energy

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Description : The first law of thermodynamics is concerned with the conservation of w) energy x) momentum y) charge z) matter

Last Answer : ANSWER: W -- ENERGY

Which of the following is the best example of law of conservation of mass? [NCERT 1975] (A) 12 g of carbon combines with 32 g of oxygen to form 44 g of CO2. (B) When 12 g of carbon is heated in a vacuum there is no change in mass. (C) A sample of air increases in volume when heated at constant pressure but its mass remains unaltered. (D) The weight of a piece of platinum is the same before and after heating in air.

Description : Which of the following is the best example of law of conservation of mass? [NCERT 1975] (A) 12 g of carbon combines with 32 g of oxygen to form 44 g of CO2. (B) When 12 g of carbon is ... mass remains unaltered. (D) The weight of a piece of platinum is the same before and after heating in air.

Last Answer : (A) 12 g of carbon combines with 32 g of oxygen to form 44 g of CO2.

Kirchhoff's 2nd law is consequence of law of conservation of A. energy B. charge C. momentum D. power

Description : Kirchhoff's 2nd law is consequence of law of conservation of A. energy B. charge C. momentum D. power

Last Answer : energy

Lenz's law is an example of the law of conservation of one of the following. Is it conservation of: w) mass x) charge y) momentum z) energy

Description : Lenz's law is an example of the law of conservation of one of the following. Is it conservation of: w) mass x) charge y) momentum z) energy

Last Answer : ANSWER: Z -- ENERGY 

In elastic collisions, A. only the total momentum of the colliding objects is conserved. B. only the total kinetic energy is conserved. C. both of the momentum and total kinetic energy are conserved. D. neither momentum of the colliding bodies nor the total kinetic energy are recoverable.

Description : In elastic collisions, A. only the total momentum of the colliding objects is conserved. B. only the total kinetic energy is conserved. C. both of the momentum and total kinetic energy ... D. neither momentum of the colliding bodies nor the total kinetic energy are recoverable.

Last Answer : both of the momentum and total kinetic energy are conserved.

During the motion of a projectile fired from the earth surface, ______. (1) its kinetic energy remains constant (2) its momentum remains constant (3) vertical component of its velocity remains constant (4) horizontal component of its velocity remains constant

Description : During the motion of a projectile fired from the earth surface, ______. (1) its kinetic energy remains constant (2) its momentum remains constant (3) vertical component of its velocity remains constant (4) horizontal component of its velocity remains constant

Last Answer : (4) horizontal component of its velocity remains constant Explanation: The motion of a projectile is a two-dimensional motion-Horizontal motion and vertical motion-that take place independent ... continuously affects the vertical component, so the vertical motion is a uniformly accelerated motion.

During the motion of a projectile fired from the earth surface, _______ (1) its kinetic energy remains constant (2) its momentum remains constant (3) vertical component of its velocity remains constant (4) horizontal component of its velocity remains constant

Description : During the motion of a projectile fired from the earth surface, _______ (1) its kinetic energy remains constant (2) its momentum remains constant (3) vertical component of its velocity remains constant (4) horizontal component of its velocity remains constant

Last Answer : horizontal component of its velocity remains constant

Resultant force acting on object and rate of change of linear momentum are A. inversely related B. not related at all C. directly related D. directly proportional

Description : Resultant force acting on object and rate of change of linear momentum are A. inversely related B. not related at all C. directly related D. directly proportional

Last Answer : directly related

Which of the following statement is false? a.The potential energy of a particle has the form Ep = k2x. The force acting on the particle is constant (k is a constant) b.The linear velocity of bodies near the earth's equator (due to rotation of earth) is more than the velocities of particles at the pole c.107 dynes d.A cyclist should move along a zig-zag path while ascending a steep hill e.The density of milk decreases when cream is taken out of milk

Description : Which of the following statement is false? a.The potential energy of a particle has the form Ep = k2x. The force acting on the particle is constant (k is a constant) b.The linear velocity of ... zag path while ascending a steep hill e.The density of milk decreases when cream is taken out of milk

Last Answer : e. The density of milk decreases when cream is taken out of milk

Rocket works on the principle of – (1) Newton's Third Law (2) Newton's First Law (3) Newton's Second Law (4) Archimedes Principle

Description : Rocket works on the principle of – (1) Newton's Third Law (2) Newton's First Law (3) Newton's Second Law (4) Archimedes Principle

Last Answer : (1) Newton's Third Law Explanation: The modern science of spaceflight and rockets rest on Newton's Three Laws of Motion, a set of ideas and equations developed in the 1600s. In particular, ... engines point rearward. The action of the engine thrust produces a reaction on the rocket, accelerating it.

The principle that energy may be converted from one form to another but it cannot be either created or destroyed is: w) First Law of Thermodynamics. x) Second Law of Thermodynamics. y) Third Law of Thermodynamics. z) Principle of photoelectricity.

Description : The principle that energy may be converted from one form to another but it cannot be either created or destroyed is: w) First Law of Thermodynamics. x) Second Law of Thermodynamics. y) Third Law of Thermodynamics. z) Principle of photoelectricity.

Last Answer : ANSWER: W -- FIRST LAW OF THERMODYNAMICS.

Rocket works on the principle of (1) Newton's Third Law (2) Newton's First Law (3) Newton's Second Law (4) Archimedes Principle

Description : Rocket works on the principle of (1) Newton's Third Law (2) Newton's First Law (3) Newton's Second Law (4) Archimedes Principle

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Heat cannot be created, nor destroyed, but it can be changed from one form to another. The energy in the universe remains constant.  a. 1st Law of Energy Conservation  b. 2nd Law of Energy Conservation  c. 3rd Law of Energy Conservation  d. None of the above

Description : Heat cannot be created, nor destroyed, but it can be changed from one form to another. The energy in the universe remains constant.  a. 1st Law of Energy Conservation  b. 2nd Law of Energy Conservation  c. 3rd Law of Energy Conservation  d. None of the above

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The continuity equation of fluid mechanics utilises the principle of conservation of (A) Momentum (B) Mass (C) Energy (D) Both (B) & (C)

Description : The continuity equation of fluid mechanics utilises the principle of conservation of (A) Momentum (B) Mass (C) Energy (D) Both (B) & (C)

Last Answer : (B) Mass