Momentum and Impulse

Front

What is momentum?

Back

Momentum is the product of an object's mass and its velocity, represented by the formula p = mv, where p is momentum, m is mass, and v is 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 the product of the average force and the time duration of the force, represented by the formula J = FΔt.

Front

How does increasing collision time affect impact force?

Back

Increasing collision time decreases the impact force experienced by an object, as force is inversely related to the time over which the momentum change occurs.

Front

What happens to momentum when the speed of an object is doubled?

Back

When the speed of an object is doubled, its momentum also doubles, since momentum is directly proportional to velocity.

Front

What is the relationship between mass and momentum?

Back

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

Front

What is the principle of conservation of momentum?

Back

The principle of conservation of momentum states that in a closed system, the total momentum before an event (like a collision) is equal to the total momentum after the event.

Front

What is the formula for calculating momentum?

Back

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

Front

What effect does a soft surface have on an egg landing on it?

Back

A soft surface increases the time of impact and decreases the force experienced by the egg, helping it to remain intact.

Front

What is the unit of momentum?

Back

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

Front

What is the effect of a net force on an object with momentum?

Back

A net force acting on an object with momentum will change its velocity, and thus its momentum, according to Newton's second law.