Astronomy Final Study

Select which of the following is scientific notation for the following number:

720,000,000

• 7.2 x 10^8
• 7.2 x 10^6
• 7.2 x 10^9
• 7.2 x 10^7

Which of the following best defines the term orbit?

• The term orbit refers to the shape of an object in space.
• The path followed by an object in space as it moves around another object due to the force of gravity.
• Orbit is the distance between two objects in space.

Tags

NGSS.HS-ESS1-4

The closes distance between a planet and its star is called the:

The farthest distance between a satellite and its planet is the:

Tags

NGSS.HS-ESS1-4

Keplar's First Law describes...

• Planets move in straight lines away from the Sun.
• Planets move in circular orbits with the Sun at the center.
• Planets move in elliptical orbits with the Sun at one of the two foci.

Tags

NGSS.MS-PS2-4

Keplar's Second Law describes...

• The law of inertia
• The law of equal areas (the area of a planet's travel when equal will also have equal time spent in that area)

• The law of gravity (objects with greater mass attract other objects of smaller mass)

Keplar's Third Law describes...

• Keplar's Third Law describes the relationship between a planet's orbital period and the size of its orbit.
• Keplar's Third Law describes the relationship between a planet's orbital period and its eccentricity.
• Keplar's Third Law describes the relationship between a planet's orbital period and its seasonal changes.

Tags

NGSS.HS-ESS1-4

A planet has an aphelion of 3.42 AU and a perihelion of 2.89 AU. Based on this, what is the eccentricity of the planet? (round to 3 decimal places)

Tags

NGSS.HS-ESS1-4

The closer a planet is to its star, the ______ the planet will move.

Tags

NGSS.HS-ESS1-4

A planet is on average 4.52 AU from its star. Based on this, how long (in earth years) does it take the planet to complete an orbit?

Tags

NGSS.HS-ESS1-4