Which is a true statement about energy conversion? One form of energy cannot be converted into another form of energy. b. Heat can be converted to other forms of energy only if caloric is present. There is no relationship between heat and work. d. Heat can be converted into other forms of energy." (a) One form of energy cannot be converted into another form of energy. (b) Heat can be converted to other forms of energy only if caloric is present. (c) There is no relationship between heat and work. (d) Heat can be converted into other forms of energy.