Space and Energy Unit

According to the table, which statement accurately compares the length of one year for two of these planets?

• Earth has a longer year than Mars.

• Mars has a longer year than Venus.

• Venus has a longer year than Earth.

• Mercury has a longer year than Venus.

Which explanation about the orbital speed of the planets is best supported by these data?

• The orbital speed of large planets is greater than the orbital speed of small planets.

• The orbital speed of gaseous planets is greater than the orbital speed of rocky planets

• The orbital speed of the outer planets is greater than the orbital speed of the inner planets.

• The orbital speed of the inner planets is greater than the orbital speed of the outer planets.

Answer explanation

Does not give information about large/small or gaseous planets

Tags

NGSS.MS-ESS1-3

NGSS.MS-PS3-1

What force causes Venus to travel along a curved path instead of moving in a straight line as indicated by the dashed line in the diagram?

• Electromagnetic attraction between the Sun and Venus

• Gravitational attraction between the Sun and Venus

• Electromagnetic attraction between Mercury and Venus

• Gravitational attraction between Mercury and Venus

Answer explanation

The sun is what pulls towards that gravitational effect, yes mercury has the greatest gravitational pull per being close however the sun is the one pulling.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

The gravitational attraction between two objects is reduced most when the masses are ,

Tags

NGSS.MS-PS2-4

The gravitational attraction between two objects is reduced most when the masses are decreased , and the distance between them is ______

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

The Sun is the center of the solar system and all the planets revolve around the sun. Why do planets orbit the Sun?

• The Sun is the only celestial object that has a gravitational pull

• The Sun’s chemical composition makes it attract planets

• Only celestial bodies that emit light, like the Sun, can be at the center of an orbit

• The Sun is the most massive object in our solar system, so it exerts the greatest gravitational pull

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

The first four planets in our solar system all have rocky surfaces. What are these planets called?

• Gas Giants

• Terrestrial Planets

• Dwarf Planets

• Planetoids

Which planet would experience the greatest gravitational effect from the sun?

• Neptuen

• Jupiter

• Earth

• Mercury

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Which statement best describes the relationship of the distance of the planet from the sun and orbital velocity?

• as the planet's distance from the sun increases, the orbital velocity increases

• as the planet's distance from the sun increases, the orbital velocity decreases

• there is no clear pattern connecting distance to the sun and orbital velocity

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Which velocity is the best prediction for a newly discovered planet between the orbits of Jupiter and Mars?

• 33 km/s

• 28 km/s

• 19 km/s

• 8 km/s

Tags

NGSS.MS-ESS1-2

NGSS.MS-ESS1-3

NGSS.MS-PS2-4