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 the product of the force and the time duration of its application.

Front

What is the principle of conservation of momentum?

Back

The principle of conservation of momentum states that in a closed system, the total momentum before and after a collision remains constant, provided no external forces act on it.

Front

How do you calculate the total momentum of a system?

Back

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

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 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: Impulse = Force × Time.

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; some kinetic energy is transformed into other forms of energy.

Front

What is the formula for calculating impulse?

Back

Impulse can be calculated using the formula: Impulse = Change in Momentum = Final Momentum - Initial Momentum.

Front

What is the effect of a larger mass on momentum?

Back

A larger mass results in a greater momentum for the same velocity, as momentum is directly proportional to mass.