Learning Task 7: Choose the letter that corresponds to the correct answer. 1. Which statement about Earth's rotation and its revolution is correct? A. It takes Earth longer to rotate on its axis than revolve around the Sun. B. It takes Earth longer revolve around the Sun than to rotate on its axis. C. It takes Earth longer to rotate around the Sun than revolve on its axis. D. It takes Earth longer revolve around the Sun than to revolve on its axis. 2. What causes the apparent movement of the Sun across the sky during the day on Earth? C. Revolution of Earth in its orbit A. Location of Earth in space D. Objects are moving around the Earth B. Rotation of Earth on its axis 3. How long does it take for Earth to rotate once on its axis? A. 1 day D. 1 month B. 1 year C. 1 week 4. Which best explains why Earth has day and night? A. Earth rotates on an axis C. Earth revolves around the Sun B. The moon rotates on an axis D. Earth revolves around the Sun 5. The Earth is tilted degrees from the right -angled position. A. 21 22 B. 22 12 C. 23 12 D. 24 6. When the Northern Hemisphere is tilted toward the Sun, the Southern Hemisphere is experiencing, A. Autumn B. Summer C. Winter D. Spring 7. It is a time of a year when the length of daytime and nighttime is equal. A. Winter solstice B. Summer solstice C. Equinox D. Axis 8. In a leap year, February has how many days? A. 27 B. 28 C. 29 D. 30 9. Which term describes the movement of the Earth around the sun? A. Rotation B. Revolution C. Spinning D. Precession A. 12 hours B. 24 hours 10. How long does it take for the Earth to go one complete revolution around its orbit? C. 36 hours D. 48 hours REFLECTION (Time Frame: DAY 12)
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Answer:
1.B
2.C
3.B
4.A
5.C
6.D
7.A
8.D
9.C
10.B
Explanation:
Earth rotates once in about 24 hours with respect to the Sun, but once every 23 hours, 56 minutes, and 4 seconds with respect to other, distant, stars (see below). Earth's rotation is slowing slightly with time; thus, a day was shorter in the past.
This movement is called a revolution, which is different from rotation. Objects rotate around an axis, but revolve around other objects. So the Earth rotates around its axis as it revolves around the sun. It takes the Earth 365 days, or one year, to complete a revolution.