Exploring Linear Momentum Concepts

What is the principle of conservation of momentum?

• Total momentum is always zero in any system.

• In a closed system, total momentum remains constant.

• In an open system, momentum can change.

• Momentum can be created or destroyed.

How does impulse relate to momentum?

• Impulse is equal to the change in momentum.

• Impulse is the same as momentum.

• Momentum is independent of impulse.

• Impulse decreases momentum.

In a one-dimensional collision, what is conserved?

• Angular momentum is conserved.

• Total energy is conserved.

• Momentum is conserved.

• Kinetic energy is conserved.

What distinguishes elastic collisions from inelastic collisions?

• Elastic collisions conserve kinetic energy; inelastic collisions do not.

• Elastic collisions always result in heat generation; inelastic collisions do not.

• Elastic collisions occur only at high speeds; inelastic collisions occur at low speeds.

• Elastic collisions involve no energy transfer; inelastic collisions do.

What is an example of momentum conservation in sports?

• A runner crossing the finish line in a race.

• The collision of balls in billiards.

• A basketball player making a free throw.

• A player scoring a goal in soccer.

Define impulse and its formula.

• Impulse = Work × Distance

• Impulse = Velocity × Time

• Impulse = Force × Time

• Impulse = Mass × Acceleration

What happens to momentum in a perfectly elastic collision?

• Momentum is conserved in a perfectly elastic collision.

• Momentum is lost in a perfectly elastic collision.

• Momentum is only conserved if the objects are identical.

• Momentum is converted into heat energy during the collision.

Explain the concept of a perfectly inelastic collision.

• In a perfectly inelastic collision, objects bounce off each other with no loss of kinetic energy.

• In a perfectly inelastic collision, two objects collide and separate without any change in their velocities.

• In a perfectly inelastic collision, two objects collide and stick together, conserving momentum but not kinetic energy.

• In a perfectly inelastic collision, momentum is not conserved and kinetic energy is lost completely.

How do you determine the final velocities after a collision?

• Use conservation of momentum and kinetic energy equations.

• Estimate using average speeds before the collision.

• Calculate based on the angle of impact.

• Use only the law of gravity.

What is the difference between elastic and inelastic collisions in terms of kinetic energy?

• Elastic collisions result in a greater total kinetic energy than inelastic collisions.

• Both elastic and inelastic collisions conserve kinetic energy.

• Elastic collisions involve a loss of kinetic energy; inelastic collisions conserve it.

• Elastic collisions conserve kinetic energy; inelastic collisions do not.