Often the concepts of heat and temperature are thought to be the same, but they are not.
Perhaps the reason the two are usually and incorrectly thought to be the same is because as human beings on Earth our everyday experience leads us to notice that when you add heat to something, say like putting a pot of water on the stove, then the temperature of that something goes up. More heat, more temperature - they must be the same, right? Turns out, though, this is not true.
Question: In detail, what is the difference between kinetic energy and thermal energy?
Kinetic energy is a general term describing the energy
associated with the motion of objects (large or small objects).
You can calculate the kinetic energy of an object of
mass m with a velocity (speed) v from the formula
K.E. = 1/2 mv^2.
Thermal energy refers to the kinetic energy of the
microscopic particles (atoms and molecules) that
make up all samples of matter - i.e. all objects.
When you add heat to an object, you increase
the temperature of the object (usually) and that
heat increases the kinetic energy of the molecules
that comprise that object.
In fact, temperature is a measure of the average
kinetic energy of the microscopic particles that
make up an object.
exothermic ? Endothermic?
How does Heat Transfer?