what exactly is heat?

Question

i would like a scientific answer.

also here is another question:

KIm and Marc want to know if soil or water heats up faster in the sunlight. They easure equal amounts of soil and water and place it into two containers that are the same shape and size. Then they get ready to take the containers outside.

here is the question: what type of heat transfer method warms the surface of the soil and sand in the container?

Answer 1

heat is the transfer of energy between two objects due to temperature differences.

Notice that the name of the transfer process is heat. What gets transfered is energy. Heat is NOT a substance although it is very convenient to think of it that way. In fact, it used to be thought that heat was a substance.

There is some circularity to the definitions used:

(a) energy does work or produces heat, but
(b) heat is a transfer of energy.

I think this traces back to the fact that energy is something like obscenity: you know it when you see it, but it's very difficult to define. Ultimately, energy is expressed in the motion of substances. If it is moving, it has energy. If it has the capacity to move, there is some potential energy stored away.

Answer 2

Heat is defined as the transfer of energy from a higher temperature to a lower temperature. For ease of calculation there are three recognized types of transfer: radiation, conduction, and convection.

All three types of heat transfer warm the surfaces in your experiment unless care is taken to isolate the containers from the ground and from air currents.

Answer 3

Heat is the average kinetic energy of particles. The higher the temperature of a substance, the faster the individual molecules are moving.

Answer 4

heat is just molecules of air moving more quickly around creating friction
friction creates heat.

water would heat up faster if that is an answer
the heat transfer method is just the photons of the sun's rays hitting the surface creating friction

Answer 5

i presumed approximately that when the warmth made the finals how comparable that's to l. a. springing up. what would be even crazier is that if the warmth win back to back titles and flow 7 video games with Dallas, lol.

Answer 6

http://en.wikipedia.org/wiki/Heat