Understanding Elastic Collisions

What is a key characteristic of an elastic collision?

• Objects do not bounce off each other

• Momentum is not conserved

• Masses stick together

• Kinetic energy is conserved

Which of the following is an example of an elastic collision?

• Clay balls sticking together

• Billiard balls colliding

• Dropping a ball of dough

• Car crash

In an elastic collision, what is conserved besides momentum?

• Gravitational energy

• Kinetic energy

• Thermal energy

• Potential energy

What is the first step in solving for final velocities in elastic collisions?

• Finding the initial velocities

• Using the conservation of mass

• Measuring the distance traveled

• Applying the conservation of energy and momentum equations

What happens when two objects of equal mass collide elastically and one is initially at rest?

• They both come to rest

• They stick together

• They exchange velocities

• They move in the same direction

In an elastic collision with equal masses moving towards each other, what is the result?

• They stop moving

• They stick together

• One object stops, the other continues

• They bounce off with the same speed in opposite directions

In a collision where one mass is much larger than the other, what happens to the smaller mass?

• It stops moving

• It moves with twice the initial velocity of the larger mass

• It moves with half the initial velocity of the larger mass

• It sticks to the larger mass

When a small mass collides with a much larger stationary mass, what happens to the small mass?

• It sticks to the larger mass

• It moves in the same direction with increased speed

• It moves in the opposite direction with the same speed

• It stops moving

What is the outcome when a very large mass collides with a much smaller stationary mass?

• The small mass moves with the same speed as the large mass

• The large mass continues with the same velocity

• The large mass stops

• Both masses stick together

In an elastic collision, if one mass is significantly larger, what is the effect on the larger mass?

• It moves in the opposite direction

• Its velocity remains unchanged

• Its velocity doubles

• It stops moving