Heat Capacity: Did you know that earlier the unit of heat was calorie? One calorie was defined to be the amount of heat required to raise the temperature of 1g of water by 1 C. Read the article to ...

When substances are heated, they gain heat energy. The atoms and molecules of substances gain kinetic energy and their speed increases. The average kinetic energy of these particles is proportional to ...

Temperature is a measure of the average kinetic energy of the molecules. Different materials require different amounts of energy to change temperature. The amount of energy needed depends on: It takes ...