The Kepler's Laws Unit 2024

Front

What is Kepler's First Law of Planetary Motion?

Back

Planets move in elliptical orbits with the Sun at one focus.

Front

What is Kepler's Second Law of Planetary Motion?

Back

A line segment joining a planet and the Sun sweeps out equal areas during equal intervals of time.

Front

What is Kepler's Third Law of Planetary Motion?

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

What is axial tilt?

Back

The angle between an object's rotational axis and its orbital axis, affecting seasonal changes.

Front

What is the significance of an eccentricity of zero?

Back

An eccentricity of zero indicates a perfect circle.

Front

How does the eccentricity of an ellipse affect its shape?

Back

As the foci of an ellipse move closer together, the ellipse becomes rounder.

Front

What is the definition of revolution in astronomy?

Back

The movement of an object in a circular or elliptical path around another object, such as the Earth's orbit around the Sun.

Front

What is the difference between rotation and revolution?

Back

Rotation is the spinning of an object around its own axis, while revolution is the movement around another object.

Front

What happens to seasons if the axial tilt decreases?

Back

The difference in temperature between seasons becomes less pronounced.

Front

What is the relationship between the semi-major axis and the orbital period according to Kepler's Third Law?

Back

The square of the orbital period is proportional to the cube of the semi-major axis.