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 Impulse = Force × Time.

Front

State the law of conservation of momentum.

Back

The law of conservation of momentum states that in a closed system, the total momentum before an event is equal to the total momentum after the event.

Front

How do you calculate the total momentum of a system?

Back

Total momentum is calculated by summing the momentum of all objects in the system: Total Momentum = p1 + p2 + ... + pn.

Front

What happens to momentum in an inelastic collision?

Back

In an inelastic collision, momentum is conserved, but kinetic energy is not; the objects stick together after the collision.

Front

What is the formula for calculating force using momentum?

Back

Force can be calculated using the formula: Force = Change in Momentum / Time.

Front

What is the effect of increasing collision time on impact force?

Back

Increasing collision time decreases the impact force, as the same change in momentum is spread over a longer time.

Front

If two objects collide and stick together, what type of collision is it?

Back

It is an inelastic collision.

Front

What is the unit of momentum?

Back

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

Front

What is the relationship between impulse and momentum?

Back

Impulse is equal to the change in momentum of an object: Impulse = Δp.