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WorksheetsUnit #2 Study Session
Total questions: 21
Worksheet time: 21mins
1. The primary force behind planetary orbits is
A. magnetism.
B. gravity.
C. friction.
D. electricity.
2. The diagram shows the Moon as it orbits Earth. Which BEST explains why the Moon orbits Earth?
A. The Moon's magnetic field pulls it toward Earth.
B. The Moon's gravitational field pulls it toward Earth.
C. Earth's magnetic field is the strongest force acting on the Moon.
D. Earth's gravitational field is the strongest force acting on the Moon.
3. Which characteristic most likely makes gravity essential to the formation and structure of the universe?
A. It affects only small masses.
B. It affects only large masses.
C. It is effective over very large distances.
D. It grows weaker with increasing distance.
4. Without gravity, objects in the solar system would
A. orbit much faster.
B. orbit much slower.
C. move in straight lines.
D. stop moving altogether.
5. Which statement best explains how mass affects gravity?
A. As mass decreases, the force of gravity increases.
B. As mass increases, the force of gravity decreases.
C. The larger the mass, the weaker the force of gravity.
D. The larger the mass, the stronger the force of gravity.
6. Which shows the correct order of the planets when listed from the greatest gravitational pull to the least?
A. Earth → Venus → Neptune → Jupiter
B. Jupiter → Earth → Venus → Neptune
C. Jupiter → Neptune → Earth → Venus
D. Neptune → Venus → Earth → Jupiter
7. Within the solar system, planets orbit the Sun. What causes planets to orbit the Sun rather than the Sun to
orbit the planets?
A. The Sun has a greater diameter than the planets.
B. The Sun has a greater mass than the planets.
C. The Sun is the center of the solar system.
D. The Sun is the center of the universe.
8. A model of a planet's orbit is shown below.
Which of the model components illustrates the effect of gravity?
A. the ball
B. the string
C. the handle
D. the hand
9. A star found in another galaxy is a hundred times as massive as the Sun. Which statement best explains
why Earth has not been pulled into the other star's orbit instead of the Sun's?
A. The other star is not bright enough to influence the orbit of Earth.
B. The other star does not have a gravitational force that corresponds to its mass.
C. The other star is far enough away from Earth that it cannot exert as much gravitational force as the Sun.
D. The other star already has too many planets orbiting around it that it cannot pull another planet into its
orbit.
A. The other star is not bright enough to influence the orbit of Earth.
B. The other star does not have a gravitational force that corresponds to its mass.
C. The other star is far enough away from Earth that it cannot exert as much gravitational force as the Sun.
D. The other star already has too many planets orbiting around it that it cannot pull another planet into its
orbit.
10. The table describes the Northern and Southern Hemispheres.
A. It is summer in the Northern Hemisphere and winter in the Southern Hemisphere.
B. It is winter in the Northern Hemisphere and spring in the Southern Hemisphere.
C. It is fall in the Northern Hemisphere and summer in the Southern Hemisphere.
D. It is winter in the Northern Hemisphere and fall in the Southern Hemisphere.
11. The table below shows the average temperatures for Atlanta, Georgia, recorded for 12 months. Why do the temperatures change over the months?
A. Because the Sun is tilted on its axis, parts of Earth get more sunlight during different times of Earth's yearly
orbit.
B. Because Earth is tilted on its axis, parts of Earth get more sunlight during different times of Earth's yearly
orbit.
C. Because the Moon is tilted on its axis, it reflects more sunlight on Earth during different times of Earth's
yearly orbit.
D. Because Earth is tilted on its axis, the stars reflect more light during different times of the Earth's yearly
orbit.
12. The model shows Earth and the Sun.
Why do different parts of Earth receive different amounts of sunlight during the day?
A. because Earth revolves around the Sun
B. because Earth rotates on an axis
C. because Earth is tilted on its axis
D. because Earth is orbited by the Moon
13. Which of the following is affected by the amount of sunlight that strikes different parts of Earth due to Earth's
tilt on its axis?
A. the types of landforms on Earth
B. the lengths of the months on Earth
C. the changes of the seasons on Earth
D. the locations of the poles on Earth
14. How is a hemisphere's ability to gather solar energy affected when the hemisphere is tilted toward the
Sun?
A. The hemisphere will not gather any more or any less energy than when tilted away.
B. The hemisphere will gather less solar energy because it receives less direct sunlight.
C. The hemisphere will gather more solar energy because it receives more direct sunlight.
D. The hemisphere will not be able to gather any solar energy.
15. Why is it cold outside in the winter in the Northern Hemisphere?
A. There are fewer weather fronts in the winter.
B. There are fewer clouds in the winter.
C. Sunlight strikes the Northern Hemisphere less directly in the winter.
D. Earth's Northern Hemisphere is closer to the Sun in the winter.
16. Which relationship between Earth and the Sun explains the changing of the seasons during a year?
A. During a year, the Sun expands to cause summer, and then contracts to cause winter.
B. The tilt of Earth's axis causes changes in the angle of the Sun's rays during a year.
C. As Earth travels closer to the Sun, summer occurs, and as it gets further away, winter occurs.
D. Yearly increases in solar activity cause summer, and decreases in solar activity cause winter.
17. The diagram shows the Sun's rays lighting Earth's surface. Which area of Earth is receiving the most heat from the Sun's rays?
A. north of the equator
B. south of the equator
C. the South Pole
D. the North Pole
18. The picture shows the equator of Earth and the location of South Africa. Which statement best compares the climate near the equator to the climate in South Africa?
A. The equator receives more direct sunlight in spring and summer so it is hotter than South Africa.
B. The equator receives less direct sunlight in spring and summer so it is colder than South Africa.
C. The equator receives less direct sunlight through all the seasons of the year and this produces a colder
climate than South Africa.
D. The equator receives more direct sunlight through all the seasons of the year and this produces a warmer
climate than South Africa.
19. The picture shows a map of North America.
Which of the following cities has the shortest days in winter?
A. Anchorage, Alaska
B. Chicago, Illinois
C. Houston, Texas
D. Phoenix, Arizona
20. On Earth's surface, the average hours of daylight a place receives changes throughout the year due to
Earth's tilt. The table shows the average hours of daylight per month received at a particular location over
one year. Based on this information, which season is winter?
A. season W
B. season X
C. season Y
D. season Z
21. The table below shows the high temperatures in Jacksonville, Florida, throughout the year.
AVERAGE HIGH TEMPERATURES IN JACKSONVILLE, FLORIDA
Which of the following explains the difference in temperatures between January and July?
A. In July, sunlight hits Jacksonville more directly and for a longer time than in January.
B. In July, sunlight hits Jacksonville less directly and for a longer time than in January.
C. In July, sunlight hits Jacksonville more directly and for a shorter time than in January.
D. In July, sunlight hits Jacksonville less directly and for a shorter time than in January.
