Final answer:
An object with kinetic energy must have both mass and velocity. Kinetic energy, calculated as ½mv², is independent of an object's height or temperature. As temperature increases, particles move faster, which increases their kinetic energy.
Step-by-step explanation:
An object that has kinetic energy must have a mass and have a velocity. Kinetic energy is the energy that an object possesses due to its motion and is given by the formula ½mv², where m is the mass and v is the velocity of the object. Having a height or a temperature is not directly related to an object's kinetic energy.
To further elaborate, kinetic energy is directly proportional to the square of the object's velocity. This means that even a small increase in speed can significantly increase an object's kinetic energy. Another example includes the conversion of potential energy to kinetic energy, as seen when a ball rolls down a hill. As the ball descends, its potential energy decreases while its kinetic energy increases until it reaches the bottom with maximum kinetic energy and minimum potential energy, provided there is no air friction.
Absolute zero is the temperature at which particles theoretically have minimum internal motion and cannot go any colder. At absolute zero, it is thought that an object would have zero kinetic energy. Conversely, as the temperature increases, particles move faster, leading to an increase in kinetic energy. Let's consider a conceptual experiment where a ball falls a certain distance: its potential energy converts into kinetic energy, increasing its velocity as it descends.