Momentum and Impulse

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 Impulse?

Back

Impulse is the change in momentum of an object when a force is applied over a period of time, calculated as Impulse = Force × Time.

Front

State Newton's 1st Law of Motion.

Back

An object at rest will remain at rest, and an object in motion will remain in motion at a constant velocity unless acted upon by a net external force.

Front

State Newton's 2nd Law of Motion.

Back

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass, expressed as F = ma.

Front

State Newton's 3rd Law of Motion.

Back

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

Front

What happens in an inelastic collision?

Back

In an inelastic collision, the colliding objects stick together after the collision, and kinetic energy is not conserved.

Front

What is the formula for calculating impulse?

Back

Impulse = Force × Time.

Front

If a force of 10 N acts for 2 seconds, what is the impulse?

Back

Impulse = 10 N × 2 s = 20 N.s.

Front

How does impulse relate to momentum?

Back

Impulse is equal to the change in momentum of an object, expressed as Impulse = Δp = p_final - p_initial.

Front

What is the unit of impulse?

Back

The unit of impulse is Newton-seconds (N.s).