What are calories a measure of?

Question

What are calories a measure of?

Answer 1

Of generated heat

Answer 2

heat

Answer 3

Energy, specially metabolic activity.

Answer 4

It a measurement of energy.  Similar to that of a vault, but it is minuscule compared to that.

Answer 5

In science, a calorie is the amount of energy required to raise one gram of water by one degree Celsius and equal to 4.184 joules. However, a Calorie in regards to food is actually a kilocalorie or the amount of energy require to raise 1kg of water by 1 degree C.

In essence though, its the amount of energy stored in the food.

Answer 6

is the amount of heat (energy) required to raise the temperature of one gram of water by 1 °C.

So it is a measure of the energy content of food etc.

Answer 7

The energy density in food  

Answer 8

calories are a measure of heat

Answer 9

its a measure of energy, people now a days use joules to measure different types of energy like heat, light sound etc.. and calories are the old fashioned measurement