ES Unit 3 - Quiz

____ states that the orbit of a planet around the sun is an ellipse

• Kepler's 1st Law (Law of Ellipses)

• Law of gravitation

• Kepler's 2nd Law (Law of Equal Areas)

• Kepler's 3rd Law (Law of Periods)

The tendency of an object to resist a change in motion is....

• Gravity

• Mass

• Inertia

• Weight

The amount of mass in a particle or object

• Weight

• Mass

• Gravity

• Inertia

A measure of the force of gravity on an object...

• Mass

• Inertia

• Gravity

• Weight

____ states that the square of the orbital period of a planet is directly

proportional to the cube of its average distance from the sun.

• Kepler's 2nd Law (Law of Equal Areas)

• Kepler's 3rd Law (Law of Periods)

• Kepler's 1st Law (Law of Ellipses)

• Perihelion

_____ is the region around a magnetic material or a moving electric charge within which the force of magnetism acts

• Inertia

• Magnetic Field

• Gravity

• Mass

A force of attraction between objects that is due to their masses is..

• Inertia

• Magnetic Field

• Gravity

• Mass

The point in the orbit of a planet, asteroid, or comet at which it is closest to the sun.

• Orbit Period

• Gravity

• Ellipse

• Perihelion

______ is a closed curve in which the sum of the distances from any point on the curve to two fixed points (called foci) is constant.

• Gravity

• Aphelion

• Ellipse

• Inertia

____ is the point in an object's orbit around the sun where it is farthest away from the sun.

• Aphelion

• Apogee

• Gravity

• Ellipse