Kepler's 2nd Law

Front

What does Kepler's Second Law state?

Back

As a planet moves around its orbit, it sweeps out equal areas in equal times.

Front

How does a planet's speed change according to Kepler's Second Law?

Back

A planet moves faster when it is closer to the Sun.

Front

What shape is the orbit of a satellite according to Kepler's First Law?

Back

Elliptical.

Front

What is eccentricity in relation to an ellipse?

Back

Eccentricity measures how much an ellipse deviates from being circular; higher values indicate more elongated shapes.

Front

Which ellipse has the highest eccentricity?

Back

The bottom ellipse.

Front

Which ellipse has the lowest eccentricity?

Back

The top ellipse.

Front

What must happen for a planet to sweep out equal areas in equal times?

Back

The planet must be changing speed.

Front

What is the significance of the area swept out by a planet in its orbit?

Back

It indicates that the planet's speed varies depending on its distance from the Sun.

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.

Front

What is an example of a planet that demonstrates Kepler's Second Law?

Back

Earth, as it orbits the Sun.