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Space/Astronomy 2
Science CRCT Review
Question | Answer |
---|---|
Why does the moon appear to change shape and what causes the phases of the moon? | It revolves around the earth, the moon's actual shadow causes the phases of the moon |
What are two things that affect the appearance of a shadow | The position of the light source Position of the object itself |
Where is the Asteroid Belt located and what does it separate? | Between Mars and Jupiter, separates the inner and outer planets |
What are the three types of galaxies? | Irregular Elliptical Spiral |
What are the two types of tides? | Spring-when the sun, moon, and Earth are aligned Neap- when the sun, moon, and Earth are at a 90 degree angle |
What is a light year? | The distance light travels in a year |
What are quasars? | Star-like-objects, brighter than stars |
What are pulsars? | Stars that pulsate, when this happens the star appears to be dimming and becoming brighter as it pulsates |
What is an electromagnetic spectrum? | The arrangement of electromagnetic waves Ex- radio waves, x-rays, and microwaves |
What are two types of telescopes that use visible light? | Refracting- lenses Reflecting- lenses and mirrors both to view distant objects |