browser's Help section.
Heat is the opposite of 1 . In thermodynamics1, heat means 2 which is moved between 3 things when one of them is 4 than the other.
Heat is not the same as 5 . The temperature of an object is a measure of the 6 of the
7 it is made from and the energy of the particles is called the 8 energy.
When an object is 9 , its internal energy can 10 to make the 11 . The first law of thermodynamics says that the increase in internal energy 12 the heat added 13 the 14 done on the surroundings.
14 energy is the type of energy that a thing has because of 15 . That is, heat is defined as a spontaneous 16 energy (energy in transit) from one object to another, caused by a 17 in temperature between two objects; so objects 18 heat.
1Physics that deals with the relationships between heat and other forms of energy.