Momentum, Collisions, Impulse, Conservation of Momentum

Front

What is momentum?

Back

Momentum is the product of an object's mass and its velocity, represented by the equation p = m x v.

Front

What is the Law of Conservation of Momentum?

Back

The Law of Conservation of Momentum states that in a closed system, the total momentum before a collision is equal to the total momentum after the collision, expressed as p_i = p_f.

Front

What is an elastic collision?

Back

An elastic collision is a type of collision where both momentum and kinetic energy are conserved.

Front

What is an inelastic collision?

Back

An inelastic collision is a type of collision where momentum is conserved, but kinetic energy is not.

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 J = F x t.

Front

How do you calculate momentum?

Back

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

Front

What happens to momentum in a perfectly inelastic collision?

Back

In a perfectly inelastic collision, the colliding objects stick together after the collision, and momentum is conserved.

Front

What is the difference between elastic and inelastic collisions?

Back

In elastic collisions, both momentum and kinetic energy are conserved; in inelastic collisions, only momentum is conserved.

Front

What is the significance of the initial and final momentum in collisions?

Back

The initial momentum (p_i) and final momentum (p_f) are equal in a closed system, demonstrating the conservation of momentum.

Front

What is the formula for impulse?

Back

Impulse (J) is calculated using the formula J = F x t, where F is the force applied and t is the time duration.