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

What is the principle of conservation of momentum?

Back

The principle states that in a closed system, the total momentum before a collision is equal to the total momentum after the collision.

Front

What is an elastic collision?

Back

An elastic collision is a type of collision where both momentum and kinetic energy are conserved, and the objects bounce off each other.

Front

What is an inelastic collision?

Back

An inelastic collision is a type of collision where momentum is conserved, but kinetic energy is not; the objects may stick together after the collision.

Front

How do you calculate the change in momentum?

Back

Change in momentum is calculated as the final momentum minus the initial momentum, or Δp = p_final - p_initial.

Front

What is the relationship between impulse and momentum?

Back

Impulse is equal to the change in momentum, expressed as Impulse = Δp.

Front

What is the formula for calculating impulse?

Back

Impulse can be calculated using the formula Impulse = Force × Time.

Front

What is the effect of a longer force application time on impulse?

Back

A longer force application time results in a greater impulse, leading to a larger change in momentum.

Front

How do you find the mass of an object using momentum and velocity?

Back

Mass can be found using the formula m = p/v, where p is momentum and v is velocity.