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31 Cards in this Set

  • Front
  • Back
In what galaxy is our sun located?
Milky Way
In what form of energy is 93% of the sun's energy emitted? They include visible light, x-rays, and radio waves.
electromagnetic waves
What are tiny particles of matter that travel at the speed of light and have the ability to penetrate huge thicknesses of ordinary matter - even the entire earth itself? This makes up 7% of the energy emitted by the sun.
What is the distance from the crest (top) of one wave to the crest of the next?
What is the tool astronomers use to "fingerprint" the light coming from stars and planets? This helps astronomers determine what elements are present.
What are the wavelengths that compose the light from an object?
What is used in a modern spectroscope to separate light into its different wavelengths? It is a thin plate of glass or plastic containing thousands of microscopic lines.
diffraction grating
What is the superheated, ionized matter that the sun is made of? It can't be classified as a solid, liquid, or gas.
Atoms that have lost or gained one or more electrons and thus carry an electrical charge are called what?
What is the visible surface of the sun called?
What are the bumps on the surface of the sun that are caused by hotter plasma bubbling up from the sun's interior to the photosphere?
What are the small, dark areas that appear on the sun's surface?
What is the edge of the sun called?
What is the dark, central region of a sunspot?
What is the lighter surrounding border of a sunspot?
What is a severe storm on the sun?
solar flare
What is the energy given off by a solar flare?
What is the layer of gases that forms the innermost layer of the sun's atmosphere?
What is the outer portion of the sun's atmosphere that becomes the solar wind? It is extremely hot, low-density, and large.
What is the instrument used to observe the corona of the sun by creating an artificial eclipse?
What are the pointed jets of gasses from the top of the sun's chromosphere called?
What is a large, bright, spot in the sun's photosphere? It is usually near a sunspot. It is when plagues emit light in multiple wavelengths.
What are the high-speed particles from the sun's corona (mostly protons and electrons) that travel outward into space?
solar wind
What is an immense streamerlike disturbance that rises into the corona and then gradually falls back?
What is the innermost section of the sun where most of the thermonuclear reactions occur?
What is the middle zone of the sun's interior?
radiative zone
In what form is the electromagnetic energy in the radiative zone?
What besides density is so great in the sun's core that there is very little movement of the plasma particles?
What is the outermost region of the sun's interior?
convective zone
What is the energy received by the earth from the sun?
solar energy
What device is used to convert the sun's energy directly to electricity?
photovoltaic (PV) cell