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What objects can radiate energy?
Objects that can radiate energy include stars, light bulbs, heated coils, and the Earth's surface. The type of radiation (such as heat, light, or electromagnetic waves) emitted by an object depends on its temperature and composition.
Does all objects in the universe radiate some form of energy?
Yes, all objects in the universe radiate some form of energy in the form of heat. This radiation is known as thermal radiation and occurs due to an object's temperature causing its atoms and molecules to emit electromagnetic radiation.
Do all things radiate?
Yes, all objects with a temperature above absolute zero radiate energy in the form of electromagnetic waves. This radiation is known as thermal radiation and is a natural process that occurs as a result of the temperature of an object.
What kind of objects radiate heat?
x rays
Do hotter objects radiate more total energy per unit area than colder objects?
Yes, hotter objects radiate more total energy per unit area than colder objects. This is described by Stefan-Boltzmann's law, which states that the total energy emitted by a blackbody is proportional to the fourth power of its temperature.
