Take a close look at the energy transfers and transformations shown in the above diagram. Which type of energy is transformed into other types but is not itself produced? Kinetic energy

Chemical energy

Gravitational energy

Heat energy

When can a theory be modified if a new type of technology allows for new observations that raise new questions? a-immediately, while the questions about the theory are being asked b-after new hypotheses related to the theory are tested in experiments c-only after the new observations disprove all parts of the theory d-while scientists begin to think about how the theory could improve