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Astronomy Chapt 4

QuestionAnswer
Long ago planets were called "wanderers" because they... appeared to move from one group of stars to another
Although models of the solar system once placed Earth at the center, later models... showed the sun at the center
Which early scientist first claimed that Earth's orbit was elliptical? Kepler
These 3 objects orbit the sun... comets, meteoroids, asteroids
True or false... The sun holds Earth in orbit. True
True or false... The sun affects Earth's ocean tides. True
True or false... The sun prevents meteors from damaging Earth False
True or false... The sun provides light and heat on Earth True
True or false.. The sun gives off more light than any other stars False
True or false... The sun is a star of average size. True
True or false... The sun is hotter than any other star. False
True or false... The sun is almost one billion years old. False
The bigger and hotter a star, the more _____ it gives off. light
Three properties of stars.... size, brightness, color
This astronomer's tool separates light in a star in to color bands and dark lines. spectroscope
2 jobs of lenses and mirrors in telescopes... focus light and magnify images
Telescopes on Earth often produce blurred images because of... water vapor, dust, and other materials in the atmosphere
Telescopes can be carried into space by... rockets and satellites
A rocky body that orbits the sun like a planet is called ____ an asteroid
A measurement of the distance light can travel in one year is a ___ light year
Stars that only seem to be grouped close together form a ____ constellation
Hundreds of billions of stars can cluster in a _____ galaxy
This kind of telescope CAPTURES and BENDS light refracting
This kind of telescope uses mirrors to BOUNCE light reflecting
Earth is one of "nine" planet that revolve... around the sun
As better tools for observation were invented, scientists and astronomers were able to... make more exact models of the solar system
When a meteoroid passes through Earth's atmosphere it becomes a ____ a bright meteor or "shooting star"
The asteroid belt is located between the orbits of ___ and ___ Mars and Jupiter
True or false... Stars in a galaxy are actually close together. True
True or false... Stars in a constellation are actually close together. False
What tells about the temperature of a star... color
Because the sun is a yellow star the temperature is... medium-hot
This astronomer's tool analyzes what elements a star contains... spectroscope
Which kind of lens makes light rays spread apart? concave
Until the 1500"s scientists believed that ______ was the center of the solar system. Earth
The pull of the moon's gravity causes ___ ___ on Earth to rise and fall. ocean tides
Be able to draw a labeled sketch of a refracting telescope INCLUDE: long tube, larger objective convex lens (the light collector), smaller eyepiece convex lens (magnifier), the light rays entering and bending (color code), focal point, eye of the astronomer
Be able to name the planets in order beginning with the planet nearest the sun. My Very Educated Mother Just Served Us Noodles
Created by: fernanm
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