Kepler's Laws of Motion

Front

What does Kepler's First Law state?

Back

All planets move in elliptical shaped orbits around the Sun.

Front

What is the significance of the Sun's position in a planet's orbit according to Kepler's First Law?

Back

The Sun is at one of the foci of the elliptical orbit.

Front

What does Kepler's Second Law imply about a planet's speed in its orbit?

Back

Planets sweep out equal areas in equal times, meaning they move faster when closer to the Sun.

Front

What is Kepler's Third Law?

Back

The square of the orbital period of a planet is directly proportional to the cube of the semi-major axis of its orbit.

Front

How does Kepler's Third Law apply to the moons of Jupiter?

Back

It can be used to calculate their orbital periods based on their distances from Jupiter.

Front

What is an elliptical orbit?

Back

An elliptical orbit is an oval-shaped path that a planet orbits around the Sun.

Front

What is the relationship between a planet's distance from the Sun and its orbital period according to Kepler's Third Law?

Back

Planets closer to the Sun have shorter orbital periods.

Front

What does the term 'focus' refer to in the context of Kepler's First Law?

Back

A focus is one of the two fixed points in an ellipse around which the shape is defined.

Front

What is the formula for Kepler's Third Law?

Back

T^2 ∝ r^3, where T is the orbital period and r is the average distance from the Sun.

Front

How does Kepler's Second Law explain the varying speeds of planets?

Back

Planets move faster when they are closer to the Sun and slower when they are farther away.