Momentum + 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.

Tags

NGSS.HS-PS2-2

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 the time duration the force acts (Impulse = Force x Time).

Tags

NGSS.HS-PS2-2

Front

How does impulse relate to momentum?

Back

Impulse causes a change in momentum. When an impulse is applied to an object, its momentum changes by the amount of the impulse.

Tags

NGSS.HS-PS2-2

Front

What is the formula for calculating impulse?

Back

Impulse = Force x Time.

Front

Why is it safer to jump onto a mound of hay rather than concrete?

Back

Jumping onto hay is safer because the impulse occurs over a longer time period with a lower force, reducing the risk of injury.

Front

What happens to an object's momentum when a force is applied?

Back

The momentum of the object changes; it can either increase or decrease depending on the direction and magnitude of the force.

Tags

NGSS.HS-PS2-1

Front

What is the relationship between force, time, and momentum?

Back

The relationship is defined by the impulse-momentum theorem, which states that the impulse applied to an object equals the change in its momentum.

Tags

NGSS.HS-PS2-2

Front

Can an object experience a change in momentum without a change in speed?

Back

Yes, if the direction of the object's velocity changes, its momentum can change even if its speed remains constant.

Tags

NGSS.HS-PS2-2

Front

What is the unit of momentum?

Back

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

Tags

NGSS.HS-PS2-2

Front

What is the unit of impulse?

Back

The unit of impulse is also kilogram meter per second (kg·m/s), as it is equivalent to the change in momentum.

Tags

NGSS.HS-PS2-2