momentum

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 the unit of momentum?

Back

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

Front

How do you calculate the mass of an object if you know its momentum and velocity?

Back

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

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 a perfectly inelastic collision?

Back

A perfectly inelastic collision is a type of collision where two objects stick together after colliding, and only momentum is conserved.

Front

What is a vector quantity?

Back

A vector quantity is a physical quantity that has both magnitude and direction, such as momentum.

Front

What is a scalar quantity?

Back

A scalar quantity is a physical quantity that has only magnitude and no direction, such as mass or temperature.

Front

What happens to momentum in a closed system?

Back

In a closed system, the total momentum before and after an event (like a collision) remains constant.

Front

What is the principle of conservation of momentum?

Back

The principle of conservation of momentum states that the total momentum of a closed system remains constant if no external forces act on it.

Front

Can two objects have the same momentum?

Back

Yes, two objects can have the same momentum if their mass and velocity combinations are equal.