Momentum and Impulse Concepts

Front

What is the Law of Conservation of Momentum?

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

Define momentum.

Back

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

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 the product of force and time (Impulse = Force × Time).

Front

How does an airbag in a car work to protect passengers during a collision?

Back

An airbag increases the time of impact, which reduces the force experienced by passengers, thereby decreasing the risk of injury.

Front

What happens to the momentum of two colliding objects?

Back

The total momentum before the collision is equal to the total momentum after the collision, assuming no external forces act on them.

Front

If a person on a skateboard throws a bowling ball, what happens to their speed?

Back

The person will move in the opposite direction of the throw due to conservation of momentum, and their speed can be calculated based on the mass and velocity of the ball.

Front

What is the relationship between force, mass, and acceleration?

Back

According to Newton's second law, Force = Mass × Acceleration (F = ma).

Front

In a frictionless environment, how do two objects interact when one pushes the other?

Back

Both objects experience the same magnitude of force but in opposite directions, according to Newton's third law of motion.

Front

What is the formula for calculating momentum?

Back

Momentum (p) is calculated using the formula p = mv, where m is mass and v is velocity.

Front

What is the effect of increasing the time of impact during a collision?

Back

Increasing the time of impact reduces the average force experienced during the collision, which can help prevent injury.