Momentum Flashcardizz

Front

What is momentum?

Back

Momentum is defined as the product of an object's mass and its velocity. It is a vector quantity, meaning it has both magnitude and direction.

Front

How is momentum calculated?

Back

Momentum (p) is calculated using the formula: p = mass (m) × velocity (v).

Front

What is the unit of momentum?

Back

The unit of momentum is kilogram meter per second (kg m/s).

Front

What happens to momentum in a closed system?

Back

In a closed system, the total momentum before an event (like a collision) is equal to the total momentum after the event, according to the law of conservation of momentum.

Front

What is a perfectly inelastic collision?

Back

A perfectly inelastic collision is a type of collision where two objects stick together after colliding, and only momentum is conserved.

Front

What is the difference between elastic and inelastic collisions?

Back

In elastic collisions, both momentum and kinetic energy are conserved. In inelastic collisions, only momentum is conserved.

Front

If a runner has a momentum of 720 kg m/s and is traveling at a velocity of 5 m/s, what is his mass?

Back

The mass of the runner is 144 kg.

Front

What does it mean for two objects to experience the same force of impact?

Back

It means that both objects are subjected to the same amount of force during a collision, which can affect their momentum and resulting motion.

Front

What is the relationship between mass and momentum?

Back

Momentum is directly proportional to mass; as mass increases, momentum increases if velocity remains constant.

Front

Can an object have momentum if it is at rest?

Back

No, an object at rest has zero momentum because its velocity is zero.