Test worksheet on Earth's motions, seasons, and lunar phases, featuring a diagram and questions.
Worksheet titled "Test: Motions of Earth, the Sun & the Moon" with a diagram illustrating Earth's orbit around the Sun, showing key positions and labels. The worksheet includes multiple-choice and short-answer questions about Earth's motion, seasons, and lunar phases. The TeacherVision logo is visible at the bottom right.
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Show Answer Key & Explanations
Step-by-step solution for: Topic 7 Lesson 2 Earths Movements in Space - Multiple Choice ...
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Show Answer Key & Explanations
Step-by-step solution for: Topic 7 Lesson 2 Earths Movements in Space - Multiple Choice ...
Explanation:
Let’s go through each question one by one, using basic astronomy knowledge about Earth’s motion and seasons.
1. What Earth movement is shown by the arrow labeled A?
Arrow A points around the Sun — that’s Earth’s revolution (orbiting the Sun once per year).
2. What is the line labeled B called?
Line B goes through Earth’s center and connects the North and South Poles — that’s Earth’s axis.
3. What is represented by the line labeled C?
Line C lies flat in the plane of Earth’s orbit around the Sun — that’s the ecliptic plane (or orbital plane). But since this is a middle-school level worksheet, they likely expect “orbital plane” or simply “ecliptic”. However, looking at typical diagrams like this, line C often represents the plane of Earth’s orbit, sometimes called the ecliptic. In many curriculum materials, it's just called the ecliptic.
4. What is the name for Earth’s movement in its orbit?
That’s revolution (not rotation — rotation is spinning on axis).
5. How long will it take Earth to move through one cycle from point D to point D?
One full orbit = 1 year = 365 days (or approximately 1 year). Since it’s a cycle back to same position, answer is 1 year.
6. At what date will Earth reach point F?
Point F is on the left side of the orbit, opposite the Sun — but we need to infer positions. Standard diagram:
- Point D: usually March equinox (around March 21)
- Point E: June solstice (~June 21)
- Point F: September equinox (~Sept 22)
- Point G: December solstice (~Dec 21)
So point F = September 22 (or ~Sept 21–23; most worksheets accept September 22).
7. What is the season in the United States when Earth is at point E?
Point E is the June solstice — Northern Hemisphere summer → U.S. is in summer.
8. At what point on this diagram will Earth be closest to the Sun?
Earth’s orbit is slightly elliptical, and perihelion (closest to Sun) occurs around January 3, which corresponds to point G (December solstice is Dec 21, so early January is just after G). But in simplified diagrams, they often don’t emphasize eccentricity — many curricula treat the orbit as circular and assume equal distance. However, the question asks specifically, so we must recall: Earth is closest to Sun in early January, near the December solstice position → point G.
BUT — caution: Some diagrams label point G as December solstice, which is *very close* to perihelion (Jan 3), so yes, G is correct.
9. What season will occur in the United States when Earth is closest to the Sun?
Closest = early January → Northern Hemisphere winter → U.S. season = winter.
10. When Earth is at point F, does the Northern Hemisphere receive direct or slanted rays from the Sun?
Point F = September equinox → Sun directly over equator → both hemispheres get roughly equal light, and rays are direct at equator, but for Northern Hemisphere, it’s neither strongest nor weakest — however, the question asks “direct or slanted”? At equinox, the Sun is overhead at equator, so at mid-latitudes (like U.S.), rays are slanted (not vertical). But compared to summer, they’re more slanted. The expected answer is slanted — because only at the Tropic of Cancer/Capricorn during solstices do those latitudes get direct rays; U.S. never gets truly direct (overhead) rays except south of 23.5°N, which most of U.S. isn’t. So for U.S., at equinox, rays are slanted.
Now the Multiple Choice section:
1. “Day and night are caused by Earth’s ___.”
→ Rotation (spinning on axis). Options: a. revolution, b. rotation, c. shape, d. equator → b. rotation
2. “Earth’s axis is tilted so that it points toward ___.”
→ Polaris (the North Star). Options: a. the Sun, b. the Moon, c. Polaris, d. Canada → c. Polaris
3. “When the Northern Hemisphere is having winter, the Southern Hemisphere is having ___.”
→ Summer (opposite seasons) → a. winter is wrong; b. spring no; c. summer yes; d. autumn no → c. summer
4. “The term equinox means ___.”
Equi = equal, nox = night → equal day and night → a. equal day
Let me double-check all:
Q1: revolution ✔
Q2: axis ✔
Q3: ecliptic (or orbital plane) — but common answer in such worksheets is ecliptic
However, some teachers accept “orbital plane”. But since it's a labeled line in a standard diagram, and B is axis, C is usually the ecliptic plane — but the question says “line labeled C”, and in diagrams, it's often drawn as a line representing the plane — safest answer: ecliptic
But wait — looking at typical worksheets (e.g., TeacherVision), they often say “ecliptic” for C.
Q4: revolution ✔
Q5: 1 year ✔
Q6: September 22 ✔
Q7: summer ✔
Q8: point G ✔
Q9: winter ✔
Q10: slanted rays ✔
MC:
1. b
2. c
3. c
4. a
All consistent.
Final Answer:
1. revolution
2. axis
3. ecliptic
4. revolution
5. 1 year
6. September 22
7. summer
8. G
9. winter
10. slanted
Multiple Choice: 1. b, 2. c, 3. c, 4. a
Let’s go through each question one by one, using basic astronomy knowledge about Earth’s motion and seasons.
1. What Earth movement is shown by the arrow labeled A?
Arrow A points around the Sun — that’s Earth’s revolution (orbiting the Sun once per year).
2. What is the line labeled B called?
Line B goes through Earth’s center and connects the North and South Poles — that’s Earth’s axis.
3. What is represented by the line labeled C?
Line C lies flat in the plane of Earth’s orbit around the Sun — that’s the ecliptic plane (or orbital plane). But since this is a middle-school level worksheet, they likely expect “orbital plane” or simply “ecliptic”. However, looking at typical diagrams like this, line C often represents the plane of Earth’s orbit, sometimes called the ecliptic. In many curriculum materials, it's just called the ecliptic.
4. What is the name for Earth’s movement in its orbit?
That’s revolution (not rotation — rotation is spinning on axis).
5. How long will it take Earth to move through one cycle from point D to point D?
One full orbit = 1 year = 365 days (or approximately 1 year). Since it’s a cycle back to same position, answer is 1 year.
6. At what date will Earth reach point F?
Point F is on the left side of the orbit, opposite the Sun — but we need to infer positions. Standard diagram:
- Point D: usually March equinox (around March 21)
- Point E: June solstice (~June 21)
- Point F: September equinox (~Sept 22)
- Point G: December solstice (~Dec 21)
So point F = September 22 (or ~Sept 21–23; most worksheets accept September 22).
7. What is the season in the United States when Earth is at point E?
Point E is the June solstice — Northern Hemisphere summer → U.S. is in summer.
8. At what point on this diagram will Earth be closest to the Sun?
Earth’s orbit is slightly elliptical, and perihelion (closest to Sun) occurs around January 3, which corresponds to point G (December solstice is Dec 21, so early January is just after G). But in simplified diagrams, they often don’t emphasize eccentricity — many curricula treat the orbit as circular and assume equal distance. However, the question asks specifically, so we must recall: Earth is closest to Sun in early January, near the December solstice position → point G.
BUT — caution: Some diagrams label point G as December solstice, which is *very close* to perihelion (Jan 3), so yes, G is correct.
9. What season will occur in the United States when Earth is closest to the Sun?
Closest = early January → Northern Hemisphere winter → U.S. season = winter.
10. When Earth is at point F, does the Northern Hemisphere receive direct or slanted rays from the Sun?
Point F = September equinox → Sun directly over equator → both hemispheres get roughly equal light, and rays are direct at equator, but for Northern Hemisphere, it’s neither strongest nor weakest — however, the question asks “direct or slanted”? At equinox, the Sun is overhead at equator, so at mid-latitudes (like U.S.), rays are slanted (not vertical). But compared to summer, they’re more slanted. The expected answer is slanted — because only at the Tropic of Cancer/Capricorn during solstices do those latitudes get direct rays; U.S. never gets truly direct (overhead) rays except south of 23.5°N, which most of U.S. isn’t. So for U.S., at equinox, rays are slanted.
Now the Multiple Choice section:
1. “Day and night are caused by Earth’s ___.”
→ Rotation (spinning on axis). Options: a. revolution, b. rotation, c. shape, d. equator → b. rotation
2. “Earth’s axis is tilted so that it points toward ___.”
→ Polaris (the North Star). Options: a. the Sun, b. the Moon, c. Polaris, d. Canada → c. Polaris
3. “When the Northern Hemisphere is having winter, the Southern Hemisphere is having ___.”
→ Summer (opposite seasons) → a. winter is wrong; b. spring no; c. summer yes; d. autumn no → c. summer
4. “The term equinox means ___.”
Equi = equal, nox = night → equal day and night → a. equal day
Let me double-check all:
Q1: revolution ✔
Q2: axis ✔
Q3: ecliptic (or orbital plane) — but common answer in such worksheets is ecliptic
However, some teachers accept “orbital plane”. But since it's a labeled line in a standard diagram, and B is axis, C is usually the ecliptic plane — but the question says “line labeled C”, and in diagrams, it's often drawn as a line representing the plane — safest answer: ecliptic
But wait — looking at typical worksheets (e.g., TeacherVision), they often say “ecliptic” for C.
Q4: revolution ✔
Q5: 1 year ✔
Q6: September 22 ✔
Q7: summer ✔
Q8: point G ✔
Q9: winter ✔
Q10: slanted rays ✔
MC:
1. b
2. c
3. c
4. a
All consistent.
Final Answer:
1. revolution
2. axis
3. ecliptic
4. revolution
5. 1 year
6. September 22
7. summer
8. G
9. winter
10. slanted
Multiple Choice: 1. b, 2. c, 3. c, 4. a
Parent Tip: Review the logic above to help your child master the concept of earth in space worksheet answer key.
