Impulse-Momentum

Front

What is impulse?

Back

Impulse is the change in momentum of an object when a force is applied over a period of time. It is calculated as the product of the average force and the time duration over which the force acts.

Front

What is momentum?

Back

Momentum is the product of an object's mass and its velocity. It is a vector quantity, meaning it has both magnitude and direction.

Front

How is momentum calculated?

Back

Momentum (p) is calculated using the formula: p = mass (m) × velocity (v).

Front

What is the relationship between impulse and momentum?

Back

Impulse is equal to the change in momentum of an object. This is expressed in the impulse-momentum theorem: Impulse = Change in Momentum.

Front

What happens to momentum in a closed system?

Back

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

Front

If two objects collide and stick together, what type of collision is this?

Back

This is called a perfectly inelastic collision, where the two objects stick together after colliding, resulting in a combined mass.

Front

What is the formula for calculating impulse?

Back

Impulse (J) is calculated using the formula: J = Force (F) × Time (t).

Front

What is the unit of impulse?

Back

The unit of impulse is Newton-seconds (N⋅s) or kg⋅m/s.

Front

How does mass affect momentum?

Back

For a given velocity, an increase in mass will result in an increase in momentum, as momentum is directly proportional to mass.

Front

How does velocity affect momentum?

Back

For a given mass, an increase in velocity will result in an increase in momentum, as momentum is directly proportional to velocity.