IS1T2: Momentum (2024)

Front

What is momentum?

Back

Momentum is the product of an object's mass and its velocity, represented by the formula p = mv.

Front

How do you calculate momentum?

Back

Momentum (p) is calculated using the formula: p = mv, where 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

If a 9300 kg railroad car traveling at 5 m/s strikes a stationary 5000 kg boxcar, what is the speed of the second boxcar after the collision?

Back

9.3 m/s.

Front

True or False: A big truck will always have more momentum than a small car.

Back

False. Momentum depends on both mass and velocity.

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.

Front

Why does a semi truck have more momentum than a car if they are both traveling at 60 kph?

Back

The truck is more massive.

Front

What is the principle of conservation of momentum?

Back

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

Front

What is an elastic collision?

Back

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

Front

What is an inelastic collision?

Back

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