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

Is momentum a scalar or vector quantity?

Back

Momentum is a vector quantity, meaning it has both magnitude and direction.

Front

What is the formula for calculating momentum?

Back

The formula for calculating momentum is p = mv, where p is momentum, m is mass, and v is velocity.

Front

If an object is stationary, what is its momentum?

Back

If an object is stationary, its momentum is zero because its velocity is zero.

Front

How does mass affect momentum?

Back

The greater the mass of an object, the greater its momentum for a given velocity.

Front

How does velocity affect momentum?

Back

The greater the velocity of an object, the greater its momentum for a given mass.

Front

Calculate the momentum of a 1500-kg car moving at 20 m/s.

Back

The momentum is 30,000 kg·m/s.

Front

Calculate the momentum of a 200-kg object moving at 5 m/s.

Back

The momentum is 1,000 kg·m/s.

Front

What happens to momentum in a closed system?

Back

In a closed system, the total momentum before an event is equal to the total momentum after the event, according to the law of conservation of momentum.

Front

What is the unit of momentum?

Back

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