Conservation of momentum

Front

What is the definition of momentum?

Back

Momentum is the product of an object's mass and its velocity, represented as p = mv.

Front

What is the principle of conservation of momentum?

Back

The total momentum of a closed system remains constant if no external forces act on it.

Front

What is an elastic collision?

Back

An elastic collision is a collision in which both momentum and kinetic energy are conserved.

Front

What is an inelastic collision?

Back

An inelastic collision is a collision in which momentum is conserved, but kinetic energy is not.

Front

How do you calculate the total momentum of a system?

Back

Total momentum is calculated by summing the momenta of all objects in the system: p_total = p1 + p2 + ... + pn.

Front

What happens to momentum in a perfectly inelastic collision?

Back

In a perfectly inelastic collision, the colliding objects stick together, and momentum is conserved.

Front

What is the formula for calculating force?

Back

Force is calculated using Newton's second law: F = ma, where F is force, m is mass, and a is acceleration.

Front

How do you find the change in momentum?

Back

Change in momentum is found by subtracting the initial momentum from the final momentum: Δp = p_final - p_initial.

Front

What is the relationship between force and momentum?

Back

The relationship is given by the impulse-momentum theorem: FΔt = Δp, where F is force, Δt is time, and Δp is change in momentum.

Front

What is the significance of the direction of momentum?

Back

Momentum has both magnitude and direction; the direction indicates the direction of motion.