The following images show five planets in our solar system. Rank these planets from left to right based on the amount of time it takes them to orbit the Sun, from longest to shortest. (Not to scale.)

What will be an ideal response?


Answer:
Longest time to Shortest time:
Neptune
Jupiter
Mars
Earth
Mercury
Feedback: Recall that the time it takes a planet to orbit the Sun is called its orbital period, and that Kepler's third law tells us that orbital period increases with distance from the Sun. That is why the ranking order for orbital period is the same as the ranking order for distance from the Sun.

Physics & Space Science

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