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Chapter 6 Study Guide – The Solar System
Please be sure to review all test readings, WB pages and other WS’s in addition to using this study guide!
Chapter 1 – The Sun pp. 296-303, pp 232-239, WB 130-133
Chapter 2 – The Solar System, pp. 306-313, WB 134-137
Chapter 3 – Gravity and Orbits, pp. 316-323, WB 138-143
1.
Gravity and inertia keeps the planets moving in their orbits around the sun. WB 140/ Text p.320
2. Jupiter is the planet that has the greatest surface gravity. WB 139
3.
Total masses and distance between them are the two factors that affect the force of gravity. WB 138/
Text 318
4. Forward motion and Earth’s gravity keep artificial satellites in orbit around the Earth. WB 141/ text 320
5. Gravitational pull from the sun keeps Saturn in orbit. Not directly stated – by deduction on WB 140/ text 320
6. “Mars orbits the Sun” is a description of the orbital motion in our solar system. Not directly stated – by
deduction on WB 140/ text 320
7. Meteoroids become meteors when they enter the Earth’s atmosphere. WB 137/ Text 312
8. Two factors that keep the planets in orbit around the sun are inertia and gravitation. WB 140/ Text p.320
9. A more accurate model of the solar system is one that is elliptical. WB 141/ text 321
10. Planets that are further from the sun are large and made of gas. Not directly stated -use table in WB or text to
emphasize this info
11. A comet is a mixture of frozen gases, ice, dust, and rock that moves in an irregular circle around the
Sun. WB 137/ text p. 312
12. The only two planets in our solar system that do not have at least one moon are Mercury and Venus. Found in table
WB 135, text p. 310
13. Planets that are close to the sun orbit faster than the outer planets. not found anywhere by me!
14. Most asteroids in the solar system are found in a belt between Mars and Jupiter. Wb 137/ p.312
15. Most of the energy that the Sun produces is generated in its core. WB 132/ p. 300
16. Two main gases that make up the Sun are hydrogen and helium. WB 131/ p. 302
17. Solar energy is produced by fusion. p. 302 in text ONLY
18. The Sun is NOT mostly rock at its core. By deduction WB 132/ p. 300
19. The sun is large enough to hold about 1 million Earths. P. 299 in text ONLY
20. The object in the solar system that produces the most light is the Sun. by deduction, WB 130/ p. 299