Danger said:
Heat refers to the transfer of thermal energy from a warmer object to a cooler object. Temperature, on the other hand, is a measure of the average kinetic energy of the particles in a substance.
Heat is measured in units of energy, such as joules or calories. In the SI system, heat is measured in joules, while in the cgs system, it is measured in calories.
The amount of heat an object can hold depends on its mass, specific heat capacity, and temperature. Objects with a higher mass, specific heat, and temperature can hold more heat.
Heat transfer can occur through three main methods: conduction, convection, and radiation. In conduction, heat is transferred through direct contact between two objects. In convection, heat is transferred through the movement of fluids. In radiation, heat is transferred through electromagnetic waves.
Temperature affects the physical properties of matter, such as its density, volume, and state. As temperature increases, most substances expand, and their particles move faster, resulting in a change in state from solid to liquid to gas.