Multiple Choice
According to Newton's Law of Gravity, which of the following factors primarily determines the gravitational force between two objects?
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8. Centripetal Forces & Gravitation
Newton's Law of Gravity
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What is the primary cause of the differing seasons on Earth?
A
The gravitational pull of the Moon affecting Earth's climate.
B
The varying distance between Earth and the Sun during the year.
C
The tilt of Earth's axis relative to its orbit around the Sun.
D
The rotation of Earth on its axis.
Verified step by step guidance1
Understand that the primary cause of the differing seasons on Earth is related to the tilt of Earth's axis.
Recognize that Earth's axis is tilted at an angle of approximately 23.5 degrees relative to its orbital plane around the Sun.
This tilt causes different parts of Earth to receive varying amounts of sunlight throughout the year as Earth orbits the Sun.
During different times of the year, either the Northern Hemisphere or the Southern Hemisphere is tilted towards the Sun, resulting in longer days and more direct sunlight, which causes summer in that hemisphere.
Conversely, when a hemisphere is tilted away from the Sun, it experiences shorter days and less direct sunlight, leading to winter in that hemisphere.
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