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Astronomy ch. 1 quiz
Quiz: Astronomy Ch. 1 Studying Space
| Question | Answer |
|---|---|
| What are some types of electromagnetic radiation found on the elctromagnetic spectrum? | microwaves, radio waves, visible light |
| How long does Earth take to orbit once around the sun? | a year |
| What makes up the elvectromagetic spectrum? | all of the wavelengths of electomagnetic radiation. |
| How long does Earth take to rotat once on its axis? | a day |
| What does a telescope collect from space and focu for closer observation? | electromagnetic radiation |
| About how long doews the moon take to orbit the Earth? | a month |
| What is a constellation? | a region of the sky with a star pattern |
| What is an imaginary point directly above an observer's head? | zenith |
| What is the imaginary sphere, created by scientists, that surrounds the Earth? | a celestial sphere |
| What is each color of light on the electromagnetic spectrum? | a different wavelength of electromagnetic radiation |
| What blocks most types of electromagnetic radiation and prevents it from reaching Earth's surface? | the Earth's atmosphere |
| What would you not find in the electromagnetice spectrum? | a black hole |
| X-ray telscopes cannot be used on Earth's surface to study space because X-rays... | are blocked by the Earth's atmosphere |
| How did Hubble tell that galaxies were moving apart from each other? | by redshift |
| What evidence shows that the universe is expanding? | Galaxies are moving apart |
| Why do astronomers put telescopes in space? | to aviod dust and light pollution in Earth's atmosphere |
| What uses mirrors to gather and focus? | reflecting telescope |
| What are all of the frequencies or wavelengths of electromagnetic radiation? | electromagnetic spectrum |
| What uses lenses ti gather and focus light? | refracting telescope |
| What is the instrument that collects electromagnetic radiation from the sky and focuses it for better observation? | telscope |
| What is the angular distance between an object such a the sun and the horizon? | altitude |
| What is the line where the sky and the Earth appear to meet? | horizon |
| Who created a sun-centered theory of the universe around 140 CE? | Ptolemy |
| Who proved that there were many galaxies in the universe? | Hubble |
| Who showed that gravity keeps the planets and moons in orbit? | Newton |
| Who was the first to create an Earth-centered theory of the universe? | Copernicus |
| Who showed that the planets move in elliptical orbits around the sun? | Kepler |
| Who was on of the first astronomers to use a telescope to observe objects i space | Galileo |
Created by:
sagoracm
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