Momentum Review

Front

What is the difference between initial velocity (v_i) and final velocity (v_f)?

Back

Initial velocity (v_i) is the velocity of an object at the start of a time interval, while final velocity (v_f) is the velocity at the end of that interval.

Front

What is the equation to calculate momentum?

Back

The equation to calculate momentum is p = mv, where p is momentum, m is mass, and v is velocity.

Front

What is an elastic collision?

Back

An elastic collision is a collision where objects return to or keep their shape and kinetic energy is conserved.

Front

Which object has elastic potential energy?

Back

A stretched bow has elastic potential energy.

Front

Calculate the momentum of a 50 kg ball rolling at 5 m/s.

Back

The momentum is 250 kg*m/s, calculated using p = mv.

Front

Define momentum in physics.

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 principle states that in a closed system, the total momentum before and after a collision remains constant.

Front

What is the unit of momentum?

Back

The unit of momentum is kilogram meter per second (kg*m/s).

Front

What is the difference between elastic and inelastic collisions?

Back

In elastic collisions, kinetic energy is conserved; in inelastic collisions, kinetic energy is not conserved.

Front

How does mass affect momentum?

Back

Momentum increases with mass; if velocity is constant, a larger mass results in greater momentum.