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10 Cards in this Set
- Front
- Back
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How did early philosophers explain the movements of celestial bodies? |
Activities of gods and goddesses |
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What is the force that holds the sun, planets, moon, and other smaller objects in the Solar System in place? |
Gravity |
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What accounts for more than 99% of the mass of our Solar System? |
The Sun |
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Which of the following is NOT part of the definition of a planet? Orbits a star Spherical Celestial body Clears orbit of other objects Rocky mass |
Celestial Body |
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TRUE/FALSE: Other than Earth, no planets were recognized prior to the invention of the telescope. |
False |
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Of the following, which is NOT part of an atom? Molecule, nucleus, proton, electron, neutron |
Molecule |
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How did 1920's astronomer Edwin Hubble explain his observations that all light from distant galaxies exhibits the red-shift Doppler effect? |
All galaxies are moving apart, therefore the Universe is expanding |
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Astrophysicists conclude that the big bang theory was responsible for: |
The origin of the universe, the formation of initial hydrogen and helium atoms, and the birth of the first stars |
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Which of the following is NOT relevant to the nebular theory of planetary formation? -It explains the origin of planets, moons, asteroids, and comets. -It explains the differences between terrestrial and Jovian planets -Dust and ice particles from a nebula cloud collide to form planetesimals -Planetesimals consume materialin their paths, growing into spherical planets -Magnetic fields form in planets from the presence of iron minerals |
Magnetic fields form in planets from the presence of iron minerals |
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Foucault's experiment with a pendulum proved that.... |
The Earth rotates about an internal axis |
