Impulse And Momentum Flashcards
(25 cards)
What is the definition of momentum?
Momentum is the product of an object’s mass and its velocity, represented as p = mv.
True or False: Momentum is a scalar quantity.
False. Momentum is a vector quantity.
Fill in the blank: The momentum of an object is conserved in an ________ collision.
elastic
What is the formula for impulse?
Impulse is defined as the change in momentum, represented as J = Δp = FΔt.
Multiple Choice: Which of the following scenarios describes an inelastic collision? A) Two billiard balls colliding and bouncing off each other B) Two cars crashing and sticking together C) A ball thrown against a wall and bouncing back
B) Two cars crashing and sticking together
What happens to kinetic energy in an elastic collision?
Kinetic energy is conserved in an elastic collision.
Define what an inelastic collision is.
An inelastic collision is one in which total kinetic energy is not conserved, although momentum is conserved.
True or False: During an elastic collision, the objects involved can be deformed.
False. In an elastic collision, the objects do not deform permanently.
What is the principle of conservation of momentum?
The principle states that in a closed system, the total momentum before an event is equal to the total momentum after the event.
Fill in the blank: The area under a force vs. time graph represents ________.
impulse
Multiple Choice: Which type of collision results in maximum kinetic energy loss? A) Elastic B) Inelastic C) Perfectly inelastic
C) Perfectly inelastic
What is the unit of momentum?
The unit of momentum is kilogram meter per second (kg·m/s).
What is the relationship between force and impulse?
Impulse is equal to the force applied multiplied by the time duration of the force.
True or False: Impulse can be negative.
True. Impulse can be negative if the force acts in the opposite direction to the momentum.
Fill in the blank: In a perfectly elastic collision, both ________ and ________ are conserved.
momentum, kinetic energy
What is the effect of increasing mass on momentum if velocity remains constant?
Increasing mass will result in an increase in momentum.
Multiple Choice: If two objects collide and stick together, what type of collision has occurred? A) Elastic B) Inelastic C) Super elastic
B) Inelastic
What is the formula for calculating momentum?
Momentum is calculated using the formula p = mv, where p is momentum, m is mass, and v is velocity.
True or False: Inelastic collisions can still conserve momentum.
True. Inelastic collisions conserve momentum but not kinetic energy.
What is a common example of an elastic collision?
A common example of an elastic collision is the collision between two ideal gas molecules.
Fill in the blank: The total momentum of a system of objects is conserved unless acted upon by an ________ force.
external
Multiple Choice: Which of the following best describes an elastic collision? A) Kinetic energy is lost B) Kinetic energy is conserved C) Objects stick together
B) Kinetic energy is conserved
What happens to the momentum of an object if its velocity doubles and its mass remains constant?
The momentum will also double.
True or False: Impulse can be represented as the area under a force vs. time graph.
True.
