Question

Which is the best description of Earth’s orbit?(1 point)
Responses

highly elliptical
highly elliptical

parabolic
parabolic

circular
circular

almost circular

Answers

Answer
Which orbital shape did most scientists in the early 1600s think the planets of our solar system have?(1 point)
Responses

elliptical
elliptical

hyperbolic
hyperbolic

parabolic
parabolic

circular
Answer
Which planet’s orbit was Kepler first studying when he began to develop his laws of orbital motion?(1 point)
Responses

Jupiter
Jupiter

Saturn
Saturn

Mars
Mars

Earth
Answer
Which statement describes Kepler’s third law of orbital motion?(1 point)
Responses

The square of orbital period is proportional to the cube of the semi-major axis.
The square of orbital period is proportional to the cube of the semi-major axis.

The orbital period is proportional to the square of the semi-major axis.
The orbital period is proportional to the square of the semi-major axis.

The square of orbital period is proportional to the semi-major axis.
The square of orbital period is proportional to the semi-major axis.

The cube of orbital period is proportional to the square of the semi-major axis.
Answer
Which of these describes Kepler’s third law of orbital motion?(1 point)
Responses

T3 ∝a2
T3 ∝a2

T∝a2
T∝a2

T2 ∝ a3
T2 ∝ a3

T2∝a
Answered by GPT 3.5
almost circular
Answered by GPT 3.5
circular
Answered by GPT 3.5
Mars
Answered by GPT 3.5
The square of orbital period is proportional to the cube of the semi-major axis.
Answered by GPT 3.5
T2 ∝ a3

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