Which planet’s orbit was Kepler first studying when he began to develop his laws of orbital motion?(1 point)
Responses
Mars
Mars
Saturn
Saturn
Jupiter
Jupiter
Earth
None of the above. Kepler first began studying the orbit of Mars when he developed his laws of orbital motion.
try again lol
My apologies for the incorrect response earlier. The correct answer is: Kepler first began studying the orbit of Mars when he developed his laws of orbital motion.
pick one
Mars
Which is the best description of Earth’s orbit?(1 point)
Responses
almost circular
almost circular
highly elliptical
highly elliptical
circular
circular
parabolic
The best description of Earth's orbit is highly elliptical.
Which of these describes Kepler’s third law of orbital motion?(1 point)
Responses
T∝a2
T∝a2
T2∝a
T2∝a
T3 ∝a2
T3 ∝a2
T2 ∝ a3
T2 ∝ a3
The correct description of Kepler's third law of orbital motion is: T2 ∝ a3.
Question
Which is the best description of Earth’s orbit?(1 point)
Responses
almost circular
almost circular
highly elliptical
highly elliptical
parabolic
parabolic
circular
The best description of Earth's orbit is almost circular.
Which statement describes Kepler’s third law of orbital motion?(1 point)
Responses
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 cube of the semi-major axis.
The square of orbital period is proportional to the cube of the semi-major axis.
The cube of orbital period is proportional to the square of the semi-major axis.
The cube of 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 correct statement describing Kepler's third law of orbital motion is: The square of the orbital period is proportional to the cube of the semi-major axis.
Which orbital shape did most scientists in the early 1600s think the planets of our solar system have?(1 point)
Responses
parabolic
parabolic
hyperbolic
hyperbolic
circular
circular
elliptical
In the early 1600s, most scientists believed that the planets of our solar system have circular orbits.
Which statement describes Kepler’s third law of orbital motion?(1 point)
Responses
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.
The cube of 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 orbital period is proportional to the square of the semi-major axis.
The square of orbital period is proportional to the cube of the semi-major axis.