What are the 6 types of electromagnetic radiation?
- Visible Light
- Infrared
- Radio
- Ultraviolet
- X-Ray
- Gamma Ray
What are the three main parts of an atom?
- Proton
- Neutron
- Electron
When the light from a star is passed through a prism a rainbow or spectrum appears with some of the colors missing. What are three things that we can learn about a star by studying these missing colors carefully?
- The chemical composition of the star.
- The temperature of the star.
- How the star is moving towards or away from us by the Doppler shift.
Atoms that have the same number of protons but a different number of neutrons are called:
Isotopes.
As an electron orbits around an atom it tends to move at certain specific distances like lanes on a freeway. The paths are called:
Energy levels or orbitals.
When photons of light bump into an atom the atom will absorb the photon and cause the electron to go into an excited energy state only if:
The energy of the photon is very close to the energy difference between energy levels in an atom.
Wein’s Law states that wavelength of maximum intensity of a black body:
Decreases with temperature (becomes bluer).
A telescope that uses a mirror to concentrate its light is called:
A reflecting telescope.
The Stephan-Boltzman Law says that the energy emitted by a black body varies as what power of the temperature?
4
The Doppler Effect states that when an object moves away from us its light is shifted towards what part of the spectrum?
The red end.
