Decide which examples are Nuclear Fusion reaction. A. The reaction that is currently used in nuclear power plants.
B. Two small atoms combine together to form one larger atom.
C. The nuclear reaction that occurs in the sun and other stars.
D. Often involves isotopes of uranium
E. Scientists hope to someday use this type of reaction in power plants.

A) A, B, C, D, E
B) B, C, E
C) A, B, C, D
D) B, C, D, E

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

A100 kg running back runs at 5m/s into a stationary linebacker. it takes 0.5 for the running back to be completely stopped

Which best describes the first law of thermodynamics as compared to the second law of thermodynamics? a. the first law describes how thermal energy is conserved but not the direction it moves. b. the first law describes the direction thermal energy moves but not how it is conserved. c. the first law describes how thermal energy can be created but not how it can be destroyed. d. the first law describes how thermal energy can be destroyed but not how it can be created.