impulse and momentum

Front

What is impulse?

Back

Impulse is the product of the average force applied to an object and the time duration over which the force is applied. It is equal to the change in momentum of the object.

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 impulse related to momentum?

Back

Impulse is equal to the change in momentum of an object. Mathematically, Impulse = Change in Momentum.

Front

What is the formula for calculating impulse?

Back

Impulse (J) = Force (F) × Time (t) or J = Δp (change in momentum).

Front

If a 2 kg object is moving at 5 m/s, what is its momentum?

Back

Momentum = mass × velocity = 2 kg × 5 m/s = 10 kg*m/s.

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

What is the effect of a resistive force on an object's momentum?

Back

A resistive force decreases the momentum of an object by applying a force in the opposite direction of its motion.

Front

How does increasing the time of impact affect force?

Back

Increasing the time of impact decreases the average force experienced by an object, as impulse is spread over a longer duration.

Front

What is the total momentum of two objects moving towards each other?

Back

The total momentum is the vector sum of their individual momenta, taking into account their directions.

Front

What is the relationship between impulse and force?

Back

Impulse is the product of force and the time duration over which the force acts. A larger force or a longer time results in a greater impulse.