Momentum Review Bellah

Front

What is momentum?

Back

Momentum is the product of an object's mass and its velocity, represented by the formula p = mv.

Front

What is the formula for calculating momentum?

Back

The formula for momentum is p = mv, where p is momentum, m is mass, and v is velocity.

Front

What does the law of conservation of momentum state?

Back

The law of conservation of momentum states that the total momentum of a closed system remains constant if no external forces act on it.

Front

How do you calculate the momentum change of an object?

Back

The momentum change of an object is equal to the impulse acting on it, which can be calculated as the product of force and the time duration of the force.

Front

If a car's velocity doubles, what happens to its momentum?

Back

If a car's velocity doubles, its momentum also doubles, since momentum is directly proportional to velocity.

Front

What is impulse?

Back

Impulse is the change in momentum of an object when a force is applied over a period of time, calculated as impulse = force × time.

Front

How does mass affect momentum?

Back

Momentum is directly proportional to mass; increasing the mass of an object increases its momentum if velocity remains constant.

Front

What happens to the total momentum in a perfectly inelastic collision?

Back

In a perfectly inelastic collision, the total momentum before the collision is equal to the total momentum after the collision, but the objects stick together.

Front

What is the relationship between speed and momentum for objects of the same mass?

Back

For objects of the same mass, momentum is directly proportional to speed; thus, an object moving faster has more momentum.

Front

If two objects collide, how do you determine their final velocity?

Back

To determine their final velocity after a collision, use the conservation of momentum principle: total momentum before = total momentum after.