16 flashcards · Shared on 19 August 2026 by AtomAI Library
Flip each card to check yourself.
What is the linear momentum of an object?
Its mass multiplied by its velocity
What is the linear momentum of an object?
Its mass multiplied by its velocity
Which statement correctly describes momentum?
It is a vector in the direction of velocity
Impulse is equal to which change in an object?
Change in momentum
What does the area under a force–time graph represent?
Impulse
When is the total momentum of a system conserved?
When the net external impulse on the system is zero
Which quantities are conserved in an isolated elastic collision?
Momentum and kinetic energy
What characterizes a perfectly inelastic collision?
The objects stick together after colliding
What happens to kinetic energy in an isolated inelastic collision?
Some kinetic energy is transformed into other forms
A 3 kg object moves at 4 m/s in the positive direction. What is its momentum?
12 kg·m/s
A constant force of 10 N acts on an object for 0.20 s. What impulse does it provide?
2.0 N·s
During a collision between two objects, how do the forces they exert on each other compare?
The forces are equal in magnitude and opposite in direction
Two objects collide in an isolated system. What is the relationship between their changes in momentum?
They are equal in magnitude and opposite in direction
A stationary object explodes into two fragments in an isolated system. What must be true immediately afterward?
Their momenta are equal in magnitude and opposite in direction
How is momentum conservation applied to a two-dimensional collision?
Momentum is conserved separately in perpendicular component directions
A 2 kg cart moving at 3 m/s collides with a stationary 1 kg cart, and they stick together. What is their final velocity?
2 m/s in the original direction
What does the coefficient of restitution measure in a one-dimensional collision?
The ratio of relative separation speed to relative approach speed