All Flashcards
What are the differences between elastic and inelastic collisions?
Elastic Collisions: Kinetic energy is conserved, objects bounce off. | Inelastic Collisions: Kinetic energy is not conserved, energy lost as heat/sound, objects may stick.
What are the differences between open and closed systems in the context of momentum?
Closed System: No exchange of matter/energy, momentum conserved. | Open System: Exchange of matter/energy, momentum may not be conserved.
In a force-time graph, what does the area under the curve represent?
The area under the curve represents the impulse.
What is the effect of applying a force over a time interval?
It causes a change in momentum, known as impulse.
What happens when a net external force acts on a system?
The total momentum of the system changes.
What happens during an inelastic collision?
Kinetic energy is not conserved; some energy is converted to other forms like heat or sound.
What is the effect of an impulse on an object?
The object's momentum changes.
What happens when objects stick together after a collision?
The collision is inelastic, and kinetic energy is not conserved.