A. Energy is involved in all physical and chemical processes. It is conserved, and can be transformed from one form to another and into work. At the atomic and nuclear levels energy is not continuous but exists in discrete amounts. Energy and mass are related through Einstein's equation E=mc2.
B. The properties of atomic nuclei are responsible for energy-related phenomena such as radioactivity, fission and fusion.
C. Changes in entropy and energy that accompany chemical reactions influence reaction paths. Chemical reactions result in the release or absorption of energy.
D. The theory of electromagnetism explains that electricity and magnetism are closely related. Electric charges are the source of electric fields. Moving charges generate magnetic fields.
E. Waves are the propagation of a disturbance. They transport energy and momentum but do not transport matter.
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Original Student Tutorials Science - Grades 9-12
Explore the differences between endothermic and exothermic phase changes in this interactive tutorial.
This is part 2 in a two-part series. Click to open Part 1 on endothermic and exothermic reactions.
Discover why some reactions leave you feeling warmer while others leave you feeling cooler in this interactive tutorial.
This is part 1 in a two-part series. Click to open Part 2 on endothermic and exothermic phase changes.
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Discover why some reactions leave you feeling warmer while others leave you feeling cooler in this interactive tutorial.
This is part 1 in a two-part series. Click to open Part 2 on endothermic and exothermic phase changes.
Type: Original Student Tutorial
Explore the differences between endothermic and exothermic phase changes in this interactive tutorial.
This is part 2 in a two-part series. Click to open Part 1 on endothermic and exothermic reactions.
Type: Original Student Tutorial