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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Perspectives Video: Expert
Perspectives Video: Professional/Enthusiast
Resource Collection
Text Resource
Tutorials
Video/Audio/Animation
Virtual Manipulatives
Student Resources
Perspectives Video: Expert
The director of the National High Magnetic Field Laboratory describes electromagnetic waves.
Download the CPALMS Perspectives video student note taking guide.
Type: Perspectives Video: Expert
Tutorials
- Observe that light is composed of oscillating electric and magnetic waves
- Explore the propagation of an electromagnetic wave through its electric and magnetic field vectors
- Observe the difference in propagation of light of different wavelengths
Type: Tutorial
- Explore the relationship between wavelength, frequency, amplitude and energy of an electromagnetic wave
- Compare the characteristics of waves of different wavelengths
Type: Tutorial
Virtual Manipulative
Whether it is a tumor or not, Magnetic Resonance Imaging (MRI) can tell. Your head is full of tiny radio transmitters (the nuclear spins of the hydrogen nuclei of your water molecules). In an MRI unit, these little radios can be made to broadcast their positions, giving a detailed picture of the inside of your head.
In this simulation you can:
- Recognize that light can flip spins if the energy of the photons matches the difference between the energies of spin up and spin down.
- Recognize that the difference between the energies of spin up and spin down is proportional to the strength of the applied magnetic field.
- Describe how to put these two ideas together to detect where there is a higher density of spins.
Type: Virtual Manipulative
Parent Resources
Perspectives Video: Expert
The director of the National High Magnetic Field Laboratory describes electromagnetic waves.
Download the CPALMS Perspectives video student note taking guide.
Type: Perspectives Video: Expert
Virtual Manipulatives
This virtual manipulative will allow the students to explore the interactions between a compass and bar magnet. Students can discover that magnetic fields are produced when all the electrons in a metal object are spinning in the same direction, either as a natural phenomenon, in an artificially created magnet, or when they are induced to do so by an electromagnetic field.
Some of the sample learning goals can be:
- Predict the direction of the magnet field for different locations around a bar magnet and electromagnet.
- Compare and contrast bar magnets and electromagnets.
- Identify the characteristics of electromagnets that are variable and what effects each variable has on the magnetic field's strength and direction.
- Relate magnetic field strength to distance quantitatively and qualitatively.
Type: Virtual Manipulative
Whether it is a tumor or not, Magnetic Resonance Imaging (MRI) can tell. Your head is full of tiny radio transmitters (the nuclear spins of the hydrogen nuclei of your water molecules). In an MRI unit, these little radios can be made to broadcast their positions, giving a detailed picture of the inside of your head.
In this simulation you can:
- Recognize that light can flip spins if the energy of the photons matches the difference between the energies of spin up and spin down.
- Recognize that the difference between the energies of spin up and spin down is proportional to the strength of the applied magnetic field.
- Describe how to put these two ideas together to detect where there is a higher density of spins.
Type: Virtual Manipulative