CH 2: Conservation of Momentum

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What is an isolated system in physics?

A system where net external forces are zero (correct)

A system with no surroundings

A system where internal forces are zero

A system with no objects

Which of the following statements about the conservation of linear momentum is true?

The total linear momentum of an isolated system remains constant if the net external force is zero (correct)

It only applies to elastic collisions

It is a principle that is only applicable to certain types of systems

It is only valid for systems with constant kinetic energy

In the context of systems in physics, what are internal forces?

Forces between objects within the system (correct)

Forces that are not related to the system

Forces acting on the system from the environment

Forces that are always zero

What is the difference between elastic and inelastic collisions?

In elastic collisions, both momentum and kinetic energy are conserved Signup and view all the answers

What is meant by the term 'system' in physics?

A collection of objects considered for analysis Signup and view all the answers

When applying the conservation of linear momentum in a one-dimensional collision, what is typically done?

Assign a positive direction and consider momentum contributions before and after the collision Signup and view all the answers

What are external forces in the context of systems in physics?

Forces originating from outside the system Signup and view all the answers

In an elastic collision, which of the following quantities is conserved?

Both momentum and kinetic energy Signup and view all the answers

Which of the following statements about the conservation of linear momentum is false?

It is a principle that is only applicable in certain situations Signup and view all the answers

What is the primary difference between an isolated system and a non-isolated system in physics?

An isolated system has no net external forces Signup and view all the answers

In an elastic collision, which of the following is conserved?

Both kinetic energy and momentum Signup and view all the answers

What is the primary purpose of crumple zones and airbags in vehicles?

All of the above Signup and view all the answers

In the given example of a vehicle collision, what is the first step in the analysis?

Apply conservation of momentum to find the combined velocity after the collision Signup and view all the answers

What happens to kinetic energy in an inelastic collision?

It is transformed into other forms of energy Signup and view all the answers

In the bullet and block scenario, what principle is illustrated?

Conservation of momentum Signup and view all the answers

What is the purpose of analyzing the kinetic energies before and after a collision?

To determine the collision type (elastic or inelastic) Signup and view all the answers

In the context of vehicle collisions, what does the impulse-momentum theorem help understand?

The severity of injuries to the occupants Signup and view all the answers

What happens to the total momentum of a system in both elastic and inelastic collisions?

It is always conserved Signup and view all the answers

What is the purpose of analyzing the frictional impact in the bullet and block scenario?

To illustrate the principles of force, work, and energy conservation Signup and view all the answers

Which of the following is NOT a practical application of understanding collision principles?

Predicting the outcome of planetary collisions Signup and view all the answers

In an elastic collision between two objects, which of the following is conserved?

Total kinetic energy and total momentum Signup and view all the answers

What is the primary purpose of analyzing the kinetic energies before and after a collision?

To determine the type of collision (elastic or inelastic) Signup and view all the answers

In the given example of a vehicle collision, what principle should be applied first to find the combined velocity after the collision?

Conservation of momentum Signup and view all the answers

Which of the following is the primary reason for the design of crumple zones and airbags in vehicles?

To increase the collision duration, reducing impact force Signup and view all the answers

In the bullet and block scenario, which principle is illustrated when the block-bullet system moves against friction after the collision?

Conservation of energy Signup and view all the answers

If the total kinetic energy of a system is not conserved during a collision, what type of collision has occurred?

Inelastic Signup and view all the answers

In the context of collision analysis, what does the term 'isolated system' refer to?

A system where no external forces act on it Signup and view all the answers

Which of the following statements about the conservation of linear momentum is true?

It applies to both elastic and inelastic collisions Signup and view all the answers

In a one-dimensional collision analysis, what is typically done when applying the conservation of linear momentum?

The initial and final momenta are equated Signup and view all the answers

Which of the following statements about external forces in the context of systems in physics is true?

External forces act on the system from outside the system Signup and view all the answers

If a system has no external forces acting on it, what can be said about the total linear momentum of the system?

The total linear momentum remains constant. Signup and view all the answers

In an elastic collision, which of the following quantities is conserved in addition to linear momentum?

Kinetic energy Signup and view all the answers

What is the primary difference between internal and external forces in the context of systems in physics?

Internal forces act within the system, while external forces originate from outside the system. Signup and view all the answers

In a one-dimensional collision scenario, what is typically done when applying the conservation of linear momentum?

Assign a positive direction and consider momentum contributions before and after the collision. Signup and view all the answers

What is the primary characteristic of an isolated system in physics?

The system has no external forces acting on it. Signup and view all the answers

In an inelastic collision, what happens to the kinetic energy of the system?

The kinetic energy is decreased. Signup and view all the answers

Which of the following statements about the conservation of linear momentum is true?

It applies universally across closed systems, irrespective of the internal dynamics. Signup and view all the answers

In the context of systems in physics, what is the primary purpose of analyzing the kinetic energies before and after a collision?

To determine if the collision is elastic or inelastic. Signup and view all the answers

Which of the following statements about conservation of linear momentum is false?

It applies only to systems with constant mass. Signup and view all the answers

In the analysis of a collision, what is the primary purpose of considering external forces acting on the system?

To determine if the conservation of linear momentum principle can be applied. Signup and view all the answers

In an elastic collision between two objects, what is conserved in addition to the total linear momentum?

The total kinetic energy of the system Signup and view all the answers

What is the primary purpose of analyzing the kinetic energies before and after a collision?

To determine the type of collision (elastic or inelastic) Signup and view all the answers

In the context of systems in physics, what are internal forces?

Forces that act between objects within the system Signup and view all the answers

If a system has no external forces acting on it, what can be said about the total linear momentum of the system?

The total linear momentum is always conserved Signup and view all the answers

In the context of vehicle collisions, what does the impulse-momentum theorem help understand?

The risk of injury to the occupants during the collision Signup and view all the answers

What is the primary difference between an isolated system and a non-isolated system in physics?

An isolated system has no external forces acting on it, while a non-isolated system does Signup and view all the answers

In an inelastic collision, what happens to the kinetic energy of the system?

The total kinetic energy is decreased Signup and view all the answers

Which of the following statements about external forces in the context of systems in physics is true?

External forces can change the total linear momentum of a system Signup and view all the answers

In the given example of a vehicle collision, what is the first step in the analysis?

Apply the conservation of linear momentum to find the combined velocity after the collision Signup and view all the answers

Which of the following statements about the conservation of linear momentum is true?

Linear momentum is conserved only in isolated systems Signup and view all the answers

In an isolated system undergoing an inelastic collision, what happens to the total kinetic energy of the system?

It decreases due to the dissipation of energy through heat and sound. Signup and view all the answers

Which of the following statements accurately describes the relationship between internal and external forces in the context of systems in physics?

Internal forces act between objects within the system, while external forces originate from outside the system. Signup and view all the answers

In an elastic collision between two objects, which of the following quantities remains constant for the entire system?

Both the total kinetic energy and the total linear momentum Signup and view all the answers

What is the primary purpose of applying the conservation of linear momentum in a one-dimensional collision analysis?

To determine the final velocities of the objects after the collision Signup and view all the answers

In the analysis of a collision involving a bullet and a block, what principle is illustrated when the block-bullet system moves against friction after the collision?

Conservation of linear momentum Signup and view all the answers

What is the primary characteristic of an isolated system in physics?

It has no external forces acting on the system. Signup and view all the answers

In an inelastic collision, what happens to the total kinetic energy of the system compared to an elastic collision?

The total kinetic energy is always less than in an elastic collision. Signup and view all the answers

If a system has no external forces acting on it, what can be said about the total linear momentum of the system?

The total linear momentum of the system is always conserved. Signup and view all the answers

Which of the following statements about external forces in the context of systems in physics is true?

External forces can change both the total linear momentum and the total kinetic energy of an isolated system. Signup and view all the answers

In an elastic collision, which of the following quantities is conserved in addition to linear momentum?

Total kinetic energy Signup and view all the answers

CH 2: Conservation of Momentum

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Questions and Answers

What is an isolated system in physics?

Which of the following statements about the conservation of linear momentum is true?

In the context of systems in physics, what are internal forces?

What is the difference between elastic and inelastic collisions?

What is meant by the term 'system' in physics?

When applying the conservation of linear momentum in a one-dimensional collision, what is typically done?

What are external forces in the context of systems in physics?

In an elastic collision, which of the following quantities is conserved?

Which of the following statements about the conservation of linear momentum is false?

What is the primary difference between an isolated system and a non-isolated system in physics?

In an elastic collision, which of the following is conserved?

What is the primary purpose of crumple zones and airbags in vehicles?

In the given example of a vehicle collision, what is the first step in the analysis?

What happens to kinetic energy in an inelastic collision?

In the bullet and block scenario, what principle is illustrated?

What is the purpose of analyzing the kinetic energies before and after a collision?

In the context of vehicle collisions, what does the impulse-momentum theorem help understand?

What happens to the total momentum of a system in both elastic and inelastic collisions?

What is the purpose of analyzing the frictional impact in the bullet and block scenario?

Which of the following is NOT a practical application of understanding collision principles?

In an elastic collision between two objects, which of the following is conserved?

What is the primary purpose of analyzing the kinetic energies before and after a collision?

In the given example of a vehicle collision, what principle should be applied first to find the combined velocity after the collision?

Which of the following is the primary reason for the design of crumple zones and airbags in vehicles?

In the bullet and block scenario, which principle is illustrated when the block-bullet system moves against friction after the collision?

If the total kinetic energy of a system is not conserved during a collision, what type of collision has occurred?

In the context of collision analysis, what does the term 'isolated system' refer to?

Which of the following statements about the conservation of linear momentum is true?

In a one-dimensional collision analysis, what is typically done when applying the conservation of linear momentum?

Which of the following statements about external forces in the context of systems in physics is true?

If a system has no external forces acting on it, what can be said about the total linear momentum of the system?

In an elastic collision, which of the following quantities is conserved in addition to linear momentum?

What is the primary difference between internal and external forces in the context of systems in physics?

In a one-dimensional collision scenario, what is typically done when applying the conservation of linear momentum?

What is the primary characteristic of an isolated system in physics?

In an inelastic collision, what happens to the kinetic energy of the system?

Which of the following statements about the conservation of linear momentum is true?

In the context of systems in physics, what is the primary purpose of analyzing the kinetic energies before and after a collision?

Which of the following statements about conservation of linear momentum is false?

In the analysis of a collision, what is the primary purpose of considering external forces acting on the system?

In an elastic collision between two objects, what is conserved in addition to the total linear momentum?

What is the primary purpose of analyzing the kinetic energies before and after a collision?

In the context of systems in physics, what are internal forces?

If a system has no external forces acting on it, what can be said about the total linear momentum of the system?

In the context of vehicle collisions, what does the impulse-momentum theorem help understand?

What is the primary difference between an isolated system and a non-isolated system in physics?

In an inelastic collision, what happens to the kinetic energy of the system?

Which of the following statements about external forces in the context of systems in physics is true?

In the given example of a vehicle collision, what is the first step in the analysis?

Which of the following statements about the conservation of linear momentum is true?

In an isolated system undergoing an inelastic collision, what happens to the total kinetic energy of the system?

Which of the following statements accurately describes the relationship between internal and external forces in the context of systems in physics?

In an elastic collision between two objects, which of the following quantities remains constant for the entire system?

What is the primary purpose of applying the conservation of linear momentum in a one-dimensional collision analysis?

In the analysis of a collision involving a bullet and a block, what principle is illustrated when the block-bullet system moves against friction after the collision?

What is the primary characteristic of an isolated system in physics?

In an inelastic collision, what happens to the total kinetic energy of the system compared to an elastic collision?

If a system has no external forces acting on it, what can be said about the total linear momentum of the system?

Which of the following statements about external forces in the context of systems in physics is true?

In an elastic collision, which of the following quantities is conserved in addition to linear momentum?

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