16 notecards = 4 pages (4 cards per page)
When comparing the momentum of two moving objects, which of the following is correct?
c. The less massive object will have less momentum if the velocities are the same
If a force is exerted on an object, which statement is true?
c. A small force applied over a long time interval can produce a large change in the objects momentum
The change in an objects momentum is equal to
b. the product of the force applied to the object and the time interval
A force is applied to stop a moving shopping cart. Increasing the time interval over which the force is applied
c. requires a smaller force
A 75 kg person walking around a corner bumps into an 80 kg person who was running around the same corner. The momentum of the 80 kg person
A rubber ball moving at a speed of 5 m/s hits a flat wall and returns to the thrower with the same speed. The magnitude of the momentum of the ball
c. remains the same
Two objects with different masses collide and bounce back after an elastic collision. Before the collision, the two objects were moving at velocities equal in magnitude but opposite in direction. After the collision
a. the less massive object had gained momentum
Two skaters stand facing each other. One skater's mass is 60 kg, and the other's mass is 72 kg. If the skaters push away from each other without spinning,
b. their momenta are equal and opposite
In a two body collision
a. momentum is conserved
The law of conservation of momentum states that
d. the total momentum of all objects interacting with one another remains constant regardless of the nature of the forces between the objects
Two objects move separately after colliding, and both the total momentum and total kinetic energy remain constant. What kind of collision is it?
a. perfectly elastic
In an elastic collision between two objects with unequal masses
d. the momentum of one object will increase by the amount that the momentum of the other object decreases.
A billiard ball collides with a stationary identical billiard ball in an elastic head on collision. After the collision, which is true of the first ball?
c. It comes to rest
Which of the following statements best describes the kinetic energy of the system after a two body collision if the momentum of the system is conserved?
c. It might also be conserved
Which of the following best describes the momentum of a system after a two body collision if the kinetic energy of the system is conserved?
b. It must also be conserved
Momentum is conserved
d. all of the above