Most often by burning a substance, which is a chemical reaction with oxygen, which releases heat from the substance (fuel). There are other chemical reactions which occur when two or more chemicals are mixed. You may have noticed for example when using epoxy adhesive that when the glue and the hardener combine there is some heat released.
mostly heat I'm certainly no Physicist, so perhaps I'm just showing my ignorance, when I suggest, that without Energy in the "Prima Facie" nothing could be to begin with, or with other words, " Nothing could be, without the Energy To Be" If Atoms get their Energy From Heat, where does the Energy come from to Produce the Heat? The Cause of Heat, is Friction, the Cause of Friction is Movement, and as Everything in the Universe, is Touching Everything Else in the Universe, Finding Absolute Zero, is a Wet Dream, as Everything is in a Constant State of Movement, even when Appearing to be Standing Still.( I don't recall who said or proved that) The Physical Statement concerning Energy, that stands out in my Mind, is "Energy can neither be Created, Nor Destroyed, but only Conserved" I would see this as referring to Movements, since nothing could move, without the Energy to Move in the First Place, so Atoms get their Heat from friction, which is the result of moments, or Vibrations, which are constant in nature, and would tend to produce a constant heat, different numbers of atoms in different Elements, would seem to me to produce a different Heat Range Via the increase size of the moments, or vibrations, due to the number of atoms that make up the different elements. I'm rather Certain I have added nothing to the original Answer here, and it was not my intention to take anything away from it either, I just don't think Heat is the Source of Energy, As it takes Energy to produce Energy, I Think Energy is a Phenomenon that no one actually understands, OK maybe Einstein Did.
Cells need energy and oxygen to be able to carry out their jobs...they get their energy from the oxygen in the blood!
buy heating them up or give them some form of energy, by doing this the electrons will zoom around the nucleus faster in an orbit farther from the nucleus.
They get energy from the sun.
No, the source of all our energy is from the Sun.
. . . Your? Unless you're an alien, I would suggest visiting the grammar section after this. No, all planets receive energy from the Sun.
They are different because they have different atmospheres to the Sun. The main difference is that the Sun is a star which radiates energy and the planets are cold bodies which do not produce energy.
They reflect energy. I learned this the hard way. Losing a point on a test
The sun because it's hot and humans turn it into energy
the inner planets
All planets receive light energy to a greater or lesser extent.
Energy from our Sun travels to the planets through space in the form of electromagnetic radiation, the carrier of which energy is the photon.
No, the source of all our energy is from the Sun.
planets do not shine with their own energy but shine because of energy of stars. they revolve around stars
Most planets absorb energy in the light and UV (and shorter) wavelengths. Planets radiate energy in the infrared (heat) and longer wavelengths.
Planets are not active emitters of energy, that would be Stars. Planets only reflect the energy (light) from nearby stars that they orbit. That is what makes it so difficult to find planets outside of our Solar System.
Planets do not require energy to grow. Large spacial objects crash into them and they collect. PLANTS on the other hand, they get energy from the sun.
The inner planets do, as they are much closer to the sun.
No.
By the solar energy of the son
In planets, my educated guess would be that it becomes heat. When energy is released heat is a bi-product. Maybe refining the question a little get a better answer.