SpaceTelescopeNotesICS16RUE


 * Energy-power derived from the utilization of physical or chemical resources, especially to provide light and heat or to work machines.
 * Power used to make object and other things function and it comes from different resources like fossil fuels and HEAT
 * Radiation-the emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles that cause ionization.
 * energy given off by a certain object
 * Wavelength-the distance between successive crests of a wave, especially points in a sound wave or electromagnetic wave.
 * the length or distance between peaks or dips in a wave
 * Frequency-the rate at which a vibration occurs that constitutes a wave, either in a material (as in sound waves), or in an electromagnetic field (as in radio waves and light), usually measured per second.
 * the speed at which a vibration happens
 * Reflect - (of a surface or body) throw back (heat, light, or sound) without absorbing it.
 * To bounce heat or light off a surface
 * Refract - (of water, air, or glass) make (a ray of light) change direction when it enters at an angle.
 * Absorb - take in or soak up (energy, or a liquid or other substance) by chemical or physical action, typically gradually

Answer each question as TRUE or FALSE. After each answer, write one or two sentences from the website that provides evidence to support your answer.

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Mechanical waves such as sound cannot travel through space---True. There is no medium to transmit the mechanical waves.
 * The electromagnetic spectrum is made up of only visible light.
 * False. The human eye can only detect only a small portion of this spectrum called visible light. A radio detects a different portion of the spectrum, and an x-ray machine uses yet another portion. NASA's scientific instruments use the full range of the electromagnetic spectrum to study the Earth, the solar system, and the universe beyond.
 * Microwaves are used to communicate with satellites because they can pass through parts of our atmosphere
 * True- These regions of the spectrum with wavelengths that can pass through the atmosphere are referred to as "atmospheric windows." Some microwaves can even pass through clouds, which make them the best wavelength for transmitting satellite communication signals.
 * Waves in the electromagnetic spectrum with long wavelengths have the most energy---No. They take longer to go up and down causing it to have less energy.
 * Because we knowing how fast light travels and how it is reflected, we can use this information to figure out how far away objects are.---True. Because the time it takes a laser to hit a surface and come back, people can tell how far something is. Used by astronauts.
 * Different types (wavelengths) of light are refracted (bent) differently.---True. When the full spectrum of visible light travels through the glass of a prism, the wavelengths are separated into the colors of the rainbow.
 * EXTRA CREDIT: Why do you think this would be a problem when making a telescope using lenses.--- Different colors would appear through the lens, making observations hard to analyze and inaccurate.
 * Even though we can’t see it with our eyes, cooler objects such as planets and people emit infrared waves that can be studied with special instruments.---True. Scientists are beginning to unlock different mysteries of space after the discovery that planets and other cool objects emit infrared waves that can help us see through deep space with special telescopes.
 * Ultraviolet light from space is easily researched using ground telescopes. --- False. Because Eaths atmosphere absorbs much of the UV radiation, leading astronomers to use satellites instead of ground telescopes.
 * A star that emits mostly yellow visible light that is hotter than the red star. --- True. Our sun is 5,500 degrees celcius. If it was cooler it would be a more of a yellow color and yellow light has shorter wavelengths.
 * Absorption lines in the visible spectra and patterns of reflectance can be used to tell us what distant objects like stars and planets are made of. --- True. Different colors of visible light represent different elements.

Data Set 2