5360099
Description
Flashcards by Princess Terin, updated more than 1 year ago
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Created by Princess Terin
almost 8 years ago
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| Question | Answer |
| Define the terms galaxy and universe | A collection of stars or A collection of galaxies |
| Write the colours of the visible part of the EM spectrum in order. | Red, Orange, Yellow, Green, Blue, Indigo, Violet |
| What does a spectrometer analyse? | It analyses the different wavelengths of light given off by stars and galaxies. |
| Give three reasons why some telescopes situated outside of the atmosphere? | No reflection, No refraction by clouds or dust, No absorption of waves by the atmosphere. |
| State 3 methods used to search for life beyond Earth. | Space probes, soil experiments by landers, SETI |
| Write the four stages of a stars lifecycle in order. | Nebula, star, red giant, white dwarf |
| Which two pieces of evidence provide support for the Big Bang theory? | Red shift, cosmic background radiation. |
| If a wave source is moving relative to an observer, what will be observed? | Change in the frequency and wavelength. |
| If the light from a star is red-shifted, what does this tell us? | It is moving away from us |
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