Unit 2 Solar

Which statement disagrees with Laplace's hypothesis of the sun's formation?

• The sun gradually cooled over time.

• The sun began to shrink after it formed.

• The sun began to rotate faster after it formed.

• The sun's mass moved toward the outer edge of it.

Immanuel Kant proposed the nebular hypothesis for the formation of the solar system. He proposed that a single cloud of material rotated in a single direction. Which body formed first according to his hypothesis?

• sun

• Mars

• Earth

• Mercury

A student rubs an inflated balloon on cloth. The student moves the balloon over bits of paper and the balloon attracts it. Which statement best describes how the balloon models the early formation of planets in the solar system?

• The ballon and the planets are both constructed from bits of matter that they collect.

• The balloon and the planets are both orbiting around a larger body of mass.

• The balloon attracts bits of paper, just as the planets attract matter that is around them.

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Which statement correctly describes a difference in our solar system's inner planets and outer planets due to gravitational effects?

• The inner planets are larger.

• The outer planets have more moons.

• The inner planets are more spread out.

• The outer planets all have rocky surfaces.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Where in the solar system are the most gases found, other than the sun?

• the inner planets: Mercury, Venus, Earth, and Mars

• the outer planets: Jupiter, Saturn, Uranus, and Neptune

• the Kuiper belt: disc of dwarf planets beyond the orbit of Neptune

• the astroid belt: disc of asteroids between the orbits of Mars and Jupiter

Why do planets stay in orbit around the sun?

• through the force of motion

• through the force of gravity

• because they are all connected

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Dwarf planets are smaller than planets. What is another way that dwarf planets are different?

• They are not spherical.

• They do not orbit the sun.

• They have large objects in the orbit.

The picture shows a model of the solar system. Which statement describes a limitation of the model?

• It cannot show how the planets orbit the sun.

• It does not show the gravitational force exerted by each planet.

• It cannot show the size of the planets to scale.

• It does not show the order of the planets in relation to the sun.

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

NGSS.MS-ESS1-3

The table shows events that led to the current theory that the sun is the center of the solar system. Which sequence of events is correct?

• 1, 2, 3

• 1, 3, 2

• 2, 1, 3

• 3, 1, 2

The dotted lines in the picture show orbital paths of objects. Which object orbits object E?

• object A

• object B

• object C

• object D

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4