Momentum is a measure of an object's motion, determined by its mass and velocity. Energy, on the other hand, is the ability of an object to do work or cause change. While both are related to motion, they are fundamentally different concepts.
In a closed system, the total momentum remains constant. This means that the momentum before an event or interaction is equal to the momentum after, even if there are internal changes or collisions within the system.
Yes, an object can have momentum without energy. This is seen in the case of an object at rest, where it has no kinetic energy but still has a non-zero mass and therefore has momentum.
Kinetic energy is directly proportional to an object's momentum. This means that as an object's momentum increases, so does its kinetic energy. This relationship is described by the formula KE = 1/2 * mv^2, where m is the mass and v is the velocity of the object.
Yes, momentum and energy can be transferred between different forms. For example, when a moving object collides with another object, momentum can be transferred and cause the second object to move. Similarly, energy can be transferred between forms, such as kinetic energy being converted into potential energy when an object is lifted against gravity.