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Chapter 6 Study Guide- KEY
C _ 1. One complete revolution of Earth around the sun takes about
a. one day.
c. one year.
b. one season.
d. one month
C___2. Earth has seasons because
a. it rotates on its axis.
b. the distance between Earth and the sun changes.
c. its axis is tilted as it moves around the sun.
d. the temperature of the sun changes.
B___3. In the Southern Hemisphere, the summer solstice occurs when the sun is
a. at the equator.
c. farthest north.
b. farthest south.
d. closest to Earth.
D____ 4. All objects are attracted to each other by the force of
a. weight.
c. inertia.
b. mass.
d. gravity.
B___5. The strength of the force of gravity depends on
a. the masses of the objects and their speeds.
b. the masses of the objects and the distance between them.
c. the weight of the objects and their speeds.
d. the masses of the objects and their weights.
D____ 6. A pattern or grouping of stars imagined by people to represent a figure is a
a. star chart.
c. seasonal pattern.
b. mythological object.
d. constellation.
C____ 7. The tendency of a moving object to continue moving in a straight line or a stationary
object to remain in place is called
a. orbital speed.
c. inertia.
b. mass.
d. gravity.
B___8. The phase of the moon you see depends on
a. where you are on Earth’s surface.
b. how much of the sunlit side of the moon faces Earth.
c. how much of the moon’s surface is lit by the sun.
d. whether or not an eclipse is occurring.
A____ 9. During a total lunar eclipse the moon is in Earth’s
a. shadow.
c. rotation.
b. weather.
d. orbit.
A____ 10. How long does it take the earth to rotate one time?
a. day
b. month
c. year
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Chapter Tests
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11. What type of energy powers the sun?
Nuclear energy powers the sun
12. Who discovered gravity?
Sir Isaac Newton is credited w/ ‘discovering’ gravity.
13. What is the difference between mass and weight?
Mass: How much matter in an object and it does not change according to gravity- measured wit
Kg
Weight: The measure of the force of gravity on matter. It does change according to gravity
(where you are) and is measured in N.
14. Why do we have ocean tides? How many high tides and low tides do places usually have each day?
Because the moon (and sun) have a gravitational pull on the earth, causing it to
‘bulge.’ There are usually 4 total tides: 2 high and 2 low each day.
Completion
Fill in the line to complete each statement.
15. The times when day and night are of equal length are called equinox.
16. The force that pulls the moon toward Earth is called _gravity.
17. If you are in a car that stops suddenly, your body keeps moving because it has inertia.
18. If it is spring in the Northern Hemisphere, then it is _Fall in the Southern Hemisphere.
19. Day and night are caused by Earth’s rotation on its axis.
20. A star is a giant ball of gas.
21. Any object that orbits another object or planet is called a(n) satellite (natural.)
22. A solar _eclipse occurs when the moon moves directly between the Earth and the sun.
23. Maria are flat areas, once flooded with lava, on the moon’s surface.
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Chapter Tests
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Use the diagram to label each phase of the moon.
Waxing
gibbous
First
quarter
Waxing
crescent
New
Moon
Full Moon
Waning
Gibbous
Waning
Crescent
3rd quarter
24.______________________________________
25. ______________________________________
26. ______________________________________
27. ______________________________________
28. ______________________________________
29. ______________________________________
30. ______________________________________
31. ______________________________________
32. Why do temperatures on the moon vary so much?
Because the moon does not have an atmosphere to trap in thermal energy from the sun. The
side that faces the sun is hot and the side that faces away from the sun is very cold.
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Chapter Tests
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What two factors keep a planet in orbit around the sun? Write these factors on the lines
below and then label the diagram with the two factors in the gray boxes.
1) Gravity
2) Inertia
Why does the question above say, ‘planet in orbit around the sun,’ but the diagram is of the moon and
Earth? Because both the planets and moons stay in orbit for the same reason: gravity and inertia!
A
B
At letter ‘A’ the Northern Hemisphere is having which season? Winter
At letter ‘A ‘the Southern Hemisphere is having which season? Summer
At letter ‘B’ the Southern Hemisphere is having which season? Winter
At letter ‘B’ the Northern Hemisphere is having which season? Summer
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Chapter Tests
© Pearson Education, Inc., or its affiliates. All rights reserved.
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Chapter Tests
© Pearson Education, Inc., or its affiliates. All rights reserved.