What’s warmth? Everytime you hear the phrase warmth, what normally involves
your thoughts? The recent solar, the hearth that cooks your meals, or a 95 levels
Fahrenheit throughout a sizzling summer season?

Sadly, none of those conditions above correctly outline warmth.

Definition of warmth:

Warmth is the switch of vitality from one object to a different because of a temperature distinction between the objects.

The phrase switch is vital right here in understanding what warmth is.

Examples of warmth switch

  • You contact a sizzling piece of metallic. Power will enter your hand from the new metallic as a result of the temperature of your hand was decrease than the metallic.
  • You dip your finger inside sizzling chocolate. Power will enter
    your finger from the new chocolate as a result of the temperature of the new
    chocolate is increased than the temperature of your finger. 
  • You boil water. Power will enter the water from the new burner.

This switch of vitality from one thing that’s sizzling to a different is what we name warmth. In truth warmth and warmth switch can be utilized interchangeably. 

Right here is one other instance which will enable you to perceive higher. Your mother
takes your temperature and you’ve got a fever of 104 levels.

Every time you have got a fever, the temperature of your physique has risen.

Your
physique is sizzling. Nonetheless, we by no means say that your physique has warmth in it. It’s
incorrect in physics to assume that matter can comprise warmth.

Nonetheless, it’s OK to say that matter could comprise vitality and this vitality could exist in a number of kinds.

This vitality could possibly be kinetic vitality, potential vitality, electrical potential vitality or warmth.

Whereas
you wrestle together with your fever, what do you assume will occur for those who
immerse your self in water with a temperature of 65 levels Fahrenheit?

The
vitality out of your physique will switch to the water. This may because of this
decrease your physique temperature.  This doesn’t eliminate any an infection
your physique could have, nevertheless it helps to maintain your physique temperature below
management.

What’s warmth? Here’s a higher definition

You will have seen to this point that the switch at all times occur from a
hotter object to a cooler object. In the event you contact ice, why is your hand
chilly?

It’s as a result of the vitality that existed within the type of warmth in your hand transferred to the ice. 

Second definition of warmth:

Warmth is the switch of vitality from a hotter object to a cooler object.

The switch of vitality from the solar to the earth is warmth.

The switch of vitality from the hearth to your meals is warmth

A 95 levels Fahrenheit throughout a sizzling summer season will not be warmth. It’s simply the temperature throughout a sizzling summer season. Nonetheless, a switch of vitality from the new summer season to your physique, making you feeling sizzling, is warmth.

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