Momentum and Collisions

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

How do you calculate momentum?

Back

Momentum (p) is calculated using the formula: p = m × v, where m is mass in kg and v is velocity in m/s.

Front

What is the unit of momentum?

Back

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

Front

If a biker has a mass of 75 kg and moves at 5 m/s, what is their momentum?

Back

375 kg m/s.

Front

What happens to momentum in a closed system during a collision?

Back

In a closed system, the total momentum before the collision is equal to the total momentum after the collision (Law of Conservation of Momentum).

Front

What is an elastic collision?

Back

An elastic collision is a collision in which both momentum and kinetic energy are conserved.

Front

What is an inelastic collision?

Back

An inelastic collision is a collision in which momentum is conserved, but kinetic energy is not conserved.

Front

What is an explosion in terms of momentum?

Back

An explosion is an example of a situation where two or more objects move apart after a sudden release of energy, conserving momentum.

Front

If two objects have the same mass, which one has more momentum if they are moving at different speeds?

Back

The faster moving object has more momentum.

Front

What is the relationship between mass and velocity in determining momentum?

Back

Momentum increases with either an increase in mass or an increase in velocity.