Kepler's Laws

Kepler's Laws

Assessment

Flashcard

Science

9th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is Kepler's First Law of Planetary Motion?

Back

Kepler's First Law states that planets move in elliptical orbits with the Sun at one of the foci.

2.

FLASHCARD QUESTION

Front

What does Kepler's Second Law state about the speed of planets?

Back

Kepler's Second Law states that a line segment joining a planet and the Sun sweeps out equal areas during equal intervals of time, meaning planets move faster when they are closer to the Sun.

3.

FLASHCARD QUESTION

Front

What is the significance of gravity in Kepler's Laws?

Back

Gravity is the force that causes planets to move in their orbits, influencing their speed and distance from the Sun.

4.

FLASHCARD QUESTION

Front

Which planet has the shortest orbital period around the Sun?

Back

Mercury has the shortest orbital period, taking about 88 Earth days to complete one revolution.

5.

FLASHCARD QUESTION

Front

Which planet has the longest orbital period around the Sun?

Back

Neptune has the longest orbital period, taking about 165 Earth years to complete one revolution.

6.

FLASHCARD QUESTION

Front

What is the relationship between a planet's distance from the Sun and its orbital speed?

Back

The closer a planet is to the Sun, the faster it moves in its orbit; conversely, the farther it is, the slower it moves.

7.

FLASHCARD QUESTION

Front

What is an ellipse in the context of planetary orbits?

Back

An ellipse is a geometric shape that is elongated, resembling an oval, and is the shape of the orbits of planets as described by Kepler's First Law.

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