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Unit Test — Unit test

Question 1 • Physics Sem 1 2025-2026

Which statements describe the relationship of Earth and its moon? Check all that apply.The moon orbits Earth following a nearly circular path.The gravitational pull of Earth on the moon is parallel to the velocity of the moon.The moon orbits Earth in 1 Earth day.The same face of the moon always points toward Earth.The moon’s orbit is the result of the interaction between the moon’s inertia and the gravitational force from Earth.

Answer
A
The moon orbits Earth following a nearly circular path.
B
The gravitational pull of Earth on the moon is parallel to the velocity of the moon.
C
The moon orbits Earth in 1 Earth day.
D
The same face of the moon always points toward Earth.
E
The moon’s orbit is the result of the interaction between the moon’s inertia and the gravitational force from Earth.

Explanation

The Moon follows a nearly circular orbit around Earth, and its orbit results from its forward motion (inertia) combined with Earth’s gravitational pull. The Moon is tidally locked, so it rotates once during each orbit and keeps the same face pointed toward Earth. Earth’s gravity is not parallel to the Moon’s velocity, and the Moon takes about 27 days—not 1 day—to orbit Earth.

AI-written and checked against the verified answer.

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