Iwill mark brainliest 1. energy changes occur as a. heat transfer b. work c. power d. a combination of heat transfer and work 2. how does heat energy spontaneously move? * a. heat does not move unless work is done b. heat moves from an object of lower temperature to an object of higher temperature c. heat moves from an object of higher temperature to an object of lower temperature d. heat moves in the direction of the gravitational force