A calorie is the amount of energy required to raise a volume of water a certain amount. This historically was determined by completely burning food surrounded by water.
The Atwater system averages the components of food to determine a calorie count, because our bodies do not derive energy from certain types of food. In this system protein and carbohydrates add 4 kilocalories per gram to a food's total, whereas fat adds 9 kilocalories per gram.
A kilocalorie is the energy required to heat one kilogram of water by one degree Celsius.
It could be either; but when you are talking about food, what is of interest is usually the energy content - meaning, chemical energy stored in the food. Heat IS energy, and a kilocalorie is the energy required to heat one kilogram of water by one degree Celsius.
A calorimeter. Basically you burn food inside a box and then measure the energy you get out of it. You have to make sure that the energy does not get out of the box
Teenager requires more amount of energy. A healthy balanced diet is required.
Animals get energy from the food they eat. Their body transforms chemical energy in the food into kinetic energy, thermal energy, and other chemical energy
It helps to think of work as "transfer of energy". If you do energy on a system, its energy content increases. If the system does work on something else, the system's energy content decreases.
It could be either; but when you are talking about food, what is of interest is usually the energy content - meaning, chemical energy stored in the food. Heat IS energy, and a kilocalorie is the energy required to heat one kilogram of water by one degree Celsius.
That means how much energy it has.
calories
It is essentially chemical energy, which is released when the food is digested in the stomach
You burn it.
No, it list the energy content in calories, which is the amount of energy to raise a quantity of water by a certain temperature.
Any unit of energy can be used to describe the energy content of food.
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Fats and oils are the foods highest in energy content.
Fatty and sugary foodstuffs have the highest energy content per weight unit.
A calorimeter. Basically you burn food inside a box and then measure the energy you get out of it. You have to make sure that the energy does not get out of the box
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