HMH Earth Science-Planetary Movement

What keeps planets from crashing into the sun?

• The sun does not have enough gravity

• Their orbital velocity

• The sun is too far from them.

• Their fast rotational path

Which statement is FALSE?

• Each planet has an elliptical orbit.

• Pluto's orbit is considered very eccentric.

• The sun is in the very center of each planet's orbit.

• The moon is in orbit around the Earth.

Which is NOT one of Kepler's Laws?

• The orbit of a planet is an ellipse with the sun at a focus

• A planet moves faster when it is closer to the sun

• Planetary Motion remains constant throughout the orbital year.

• There is a relationship between orbital period and distance from the sun

What is Revolution?

• the motion of one object around another.
• A cycle of space..
• The earth orbiting the sun.
• Some type of space thing. :)

Tags

NGSS.MS-ESS1-1

Which scientist studied the effects of distance and size on forces of gravity?

• Newton

• Kepler

• Cassini

• Hubble

What do we know to be true about the sun.

• It lies on the focus of the long axis of the elliptical orbit path.

• It lies on the focus of the short axis of the elliptical orbit.

• It lies in the very center of the elliptical orbit.

• Where it lies on the elliptical orbit varies throughout the year.

Which scientist used the parallax method to find the distance from Earth to Mars?

• Newton

• Kepler

• Cassini

• Hubble

Why do all of the planets orbit the sun rather than Earth?

• the sun has more mass

• the sun is a star

• the Earth is heavier

• the sun is in the middle of the milky way

Whose Theory of Relativity helped explain the precession of Mercury's orbit?

• Kepler

• Hubble

• Cassini

• Einstein

Why do all of the planets orbit the sun rather than Earth?

• The sun has more mass

• The sun is a star

• The Earth is heavier

• The sun is in the middle of the Milky Way

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

NGSS.MS-PS2-4