Question

which of the following are examples of chemical or nuclear energy?
sound from a wheel moving
nuclear fission occurring in a reactor
a substance changing into a complete other substance
writing on a chalkboard
chemical reaction occurring when two substances combine

Explanation:

• Sound from a moving wheel is mechanical - related energy, not chemical or nuclear.
• Nuclear fission in a reactor releases nuclear energy.
• A substance changing into another is a chemical reaction and involves chemical energy.
• Writing on a chalk - board is a physical process with no chemical or nuclear energy involved.
• A chemical reaction when two substances combine involves chemical energy.

Answer:

• B. nuclear fission occurring in a reactor
• C. a substance changing into a complete other substance
• E. chemical reaction occurring when two substances combine