The term 'intensity of feeling' can be described by two crossword solutions: VOLTAGE and HEAT. VOLTAGE is a measure of electrical potential energy, which is the difference in electric charge between two points in an electrical field. HEAT is a form of energy that is transferred from one object to another due to a difference in temperature. Both VOLTAGE and HEAT can be used to describe the intensity of feeling, as they both represent a type of energy that can be felt.