Kepler's Second Law Quick Check
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Question
Which does Kepler’s second law state about planetary motion?(1 point)
Responses
The planet travels along an elliptical orbit.
The planet travels along an elliptical orbit.
Planets move at the same speed at all points along their orbit.
Planets move at the same speed at all points along their orbit.
A line between the planet and the sun covers equal areas in equal times.
A line between the planet and the sun covers equal areas in equal times.
The square of the orbital period is directly proportional to the cube of the semi-major axis.
A line between the planet and the sun covers equal areas in equal times.
Kepler's Second Law Quick Check
2 of 32 of 3 Items
Question
According to Kepler’s second law of motion, which statement describes the area swept out by a line between a planet and the sun?(1 point)
Responses
It increases as the planet moves away from the sun.
It increases as the planet moves away from the sun.
It is constant if the planet moves at a constant speed.
It is constant if the planet moves at a constant speed.
It is constant for equal times.
It is constant for equal times.
It increases as the planet approaches the sun.
It is constant for equal times.
Kepler's Second Law Quick Check
3 of 33 of 3 Items
Question
How did Kepler develop his second law of motion?(1 point)
Responses
He made accurate measurements of the positions of all the planets over many years.
He made accurate measurements of the positions of all the planets over many years.
He used a telescope to carefully follow and time the orbital motion of Mars.
He used a telescope to carefully follow and time the orbital motion of Mars.
He compared data of planetary motion at different times along orbits.
He compared data of planetary motion at different times along orbits.
He invented a telescope that was strong enough to view all planets of the solar system along their orbits.
He invented a telescope that was strong enough to view all planets of the solar system along their orbits.