Momentum and Impulse

Front

What is the law of conservation of momentum?

Back

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

Front

Define momentum.

Back

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

Front

What factors affect the momentum of an object?

Back

Momentum depends on the object's mass and 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

How does increasing collision time affect impact force?

Back

Increasing collision time decreases the impact force experienced by an object.

Front

What is the relationship between force and momentum?

Back

The force applied to an object is equal to the rate of change of its momentum (F = Δp/Δt).

Front

Calculate the momentum of a 2 kg object moving at 3 m/s.

Back

Momentum = mass × velocity = 2 kg × 3 m/s = 6 kg-m/s.

Front

What happens to momentum in an elastic collision?

Back

In an elastic collision, both momentum and kinetic energy are conserved.

Front

What happens to momentum in an inelastic collision?

Back

In an inelastic collision, momentum is conserved, but kinetic energy is not.

Front

How does mass affect momentum?

Back

Greater mass results in greater momentum if velocity remains constant.