Momentum

Front

What is momentum?

Back

Momentum is defined as mass in motion. It is the product of an object's mass and its velocity.

Front

What is the formula for calculating momentum?

Back

Momentum (p) = mass (m) × velocity (v)

Front

What is the unit of momentum?

Back

The unit of momentum is kg·m/s.

Front

What does Newton's First Law state?

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

Front

What does Newton's Second Law state?

Back

Force equals mass times acceleration (F = m × a).

Front

What is Newton's Third Law?

Back

For every action, there is an equal and opposite reaction.

Front

How do you calculate the momentum of an object?

Back

Multiply the mass of the object by its velocity.

Front

If a 0.15 kg object is rolling at 2 m/s, what is its momentum?

Back

Momentum = 0.15 kg × 2 m/s = 0.3 kg·m/s.

Front

What factors affect momentum?

Back

Momentum is affected by the mass of the object and its velocity.

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 (conservation of momentum).