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

How does mass affect momentum?

Back

An increase in mass results in an increase in momentum if velocity remains constant, as momentum is directly proportional to mass.

Front

How does velocity affect momentum?

Back

An increase in velocity results in an increase in momentum if mass remains constant, as momentum is directly proportional to velocity.

Front

What is the principle of conservation of momentum?

Back

The total momentum of a closed system remains constant if no external forces act on it.

Front

What is the formula for calculating total momentum before a collision?

Back

Total momentum before a collision is calculated by summing the momenta of all objects involved: p_total = p1 + p2 + ... + pn.

Front

What is the relationship between force and impulse?

Back

Impulse is equal to the change in momentum, which can also be expressed as the product of force and the time duration over which the force acts.

Front

If a bowling ball and a ping pong ball are moving at the same speed, which has more momentum?

Back

The bowling ball has more momentum because it has a greater mass.

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 conserved.