Momentum, Collisions, Impulse, Conservation of Momentum

Front

What is momentum?

Back

Front

What is the principle of conservation of momentum?

Back

The principle of conservation of momentum states that in a closed system with no external forces, the total momentum before a collision is equal to the total momentum after the collision.

Front

What happens to the total momentum in a perfectly inelastic collision?

Back

In a perfectly inelastic collision, the two objects stick together after the collision, and the total momentum is conserved, but kinetic energy is not.

Front

Define impulse.

Back

Front

What is the unit of momentum?

Back

The unit of momentum is kilogram meter per second (kg·m/s).

Front

How does mass affect momentum?

Back

Momentum is directly proportional to mass; if the mass of an object increases while its velocity remains constant, its momentum increases.

Front

What is the relationship between force and impulse?

Back

Front

What is the difference between elastic and inelastic collisions?

Back

In elastic collisions, both momentum and kinetic energy are conserved. In inelastic collisions, momentum is conserved, but kinetic energy is not.

Front

What is the formula for calculating the final velocity of two objects after a perfectly inelastic collision?

Back

Front

What is the effect of an external force on momentum?

Back

An external force acting on a system can change the total momentum of that system, violating the principle of conservation of momentum.