Earth Moon and Sun Chapter 12 Review Quiz

SX07TR_CA8_CH12.fm Page 28 Wednesday, June 21, 2006 9:56 AM Name ____________________________ Date ____________________ Class ____________ Earth, Moon, and Sun ■ Chapter 12 Pre-Assessment Write the letter of the correct answer on the line at the left. ____ 1. What is the source of most of Earth’s heat and natural light? a. the moon b. Earth itself c. the sun d. stars other than the sun ____ 2. What force keeps Earth in orbit around the sun? a. friction between Earth and the planets b. gravity between Earth and the moon c. friction between Earth and the sun d. gravity between Earth and the sun ____ 3. How many natural satellites does Earth have? a. one b. two c. six d. dozens ____ 4. What causes day and night? a. the tilt of Earth’s axis b. the sun moving behind the moon c. Earth’s movement around the sun d. Earth’s rotation on its axis If the statement is true, write true. If the statement is false, change the underlined word or words to make the statement true. ____________________ 1. Earth’s revolution causes day and night. ____________________ 2. Earth orbits the sun in an elliptical path. ____________________ 3. Earth’s seasons are the result of only its revolution. ____________________ 4. Earth is closest to the sun during summer in the Northern Hemisphere. ____________________ 5. A(n) solstice occurs twice a year when the sun reaches its farthest position north or south of the equator. SX07TR_CA8_CH12.fm Page 29 Wednesday, June 21, 2006 9:56 AM Fill in the blank to complete each statement. 1. ________________________ attracts every object in the universe toward another object. 2. An object with a mass of 20 kg would exert ________________________ of a gravitational force than an object with a mass of 2 kg. 3. If the distance between two objects were cut in half, the force of gravity would be ________________________ its original value. 4. A baseball has ________________________ inertia than a table tennis ball. 5. The two factors that keep Earth revolving around the sun are ________________________ and ________________________. If the statement is true, write true. If the statement is false, change the underlined word or words to make the statement true. ____________________ 1. Phases of the moon, eclipses, and tides are the result of the moon’s similar periods of rotation and revolution. ____________________ 2. To an observer on Earth, moon phases depend on how much of the sunlit side of the moon faces Earth. ____________________ 3. A solar eclipse occurs when the moon is between Earth and the sun. ____________________ 4. Earth blocks sunlight from reaching the moon during a lunar eclipse. ____________________ 5. The sun has a greater effect on Earth’s tides than the moon because of its greater mass. 1. ________________________ are plains of lava on the moon’s surface. 2. The impacts of meteroids on the moon’s surface created the many ________________________. 3. Temperatures on the moon vary widely because the moon has no ________________________. 4. Although the moon has no liquid water, there is evidence of ________________________ near its poles. 5. According to the collision-ring theory, Earth’s moon formed when a space object struck Earth and the resulting debris ______________________________________________________________.