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16 Cards in this Set
- Front
- Back
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Which forms of electromagnetic radiation have lower frequencies than visible light?
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radio waves,microwaves,and infrared.
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Which form of electromagnetic radiation has the highest level of energy?How can you tell?
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gamma rays are the highest ones on the chart.
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What is the relationship between the wavelength of a wave and its freguency?
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if the wave length is big then its low frequency, if the wave length is low then you will have high freguency.
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What is a radio telescope?
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it collects radiowaves using a dish.
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What is a reflector telescope?
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it reflects light off of a curved mirror and magnifies the picture.
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What is a refractor telescope?
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an objective lens gathers light and focuses it to form an image; an eyepiece magnifies the image.
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Why can telescopes in space produce especially clear images?
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you're away from the air, dirt, and light.
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What is electromagnetic radiation?
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energy that travels across distances as certain types of waves.
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What is a spectrum?
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radiation seperated into different wavelengths.
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What is a wavelength?
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the distance between one wave peak and the next wave peak.
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What is a telescope?
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a device that gathers electromagnetic radiation.
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Are some movements of any objects in space visible from Earth?Which ones?
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some are visible over a few nights.
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What is the milky way made of?
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it's made of a billion stars and the sun.
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What is Earth?
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we live on this planet and it has one moon.
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What is the universe?
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it's billions of galaxies spread throughout the universe.
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What is the solar system?
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it contains the sun,planets, and many smaller objects.
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