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 if formed

• The sun began to rotate faster after it formed

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

Tags

NGSS.MS-PS2-4

Immanuel Kant proposed the nebular hypothesis for the origin of the solar system as a single cloud of material rotating in a single direction. Which object in our solar system is the most similar to the nebula in composition?

• sun

• Mars

• Earth

• Mercury

Tags

NGSS.MS-PS1-1

A student rubs an inflated balloon with wool. 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 balloon and the planets are both constructed from bits of matter that they collect

• The balloon circles over the bits of paper, just as the planets circle around each other

• The balloon and the planets both display orbital motion 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

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 apart

• The outer planets all have rocky surfaces

Tags

NGSS.MS-PS2-4

Which of these are comets composed of?

• ice and dust

• metals and dust

• hydrogen and ice

• hydrogen and helium

Where in the solar system are 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 asteroid belt: disc of asteroids between the orbits of Mars and Jupiter

Which statement summarizes how the formation of the solar system was similar to the differentiation of Earth into layers?

• In both processes, the most massive materials moved to the center.

• In both processes, the most massive materials moved to the outside

• In both processes, the most massive material were evenly distributed

• In both processes, the most massive materials formed the middle layer

What is the difference between the inner planets and the outer planets?

• The outer planets are smaller than the inner planets 
• The inner planets are smaller than the outer planets
• The outer planets have more rocks than the inner planets
• the inner planets are heavier than  the outer planets

The ___________ is a region of thousands of small bodies that exists outside the orbit of the planets. Objects in this area consist of "ices" such as ammonia, water, and methane.

• dwarf planets

• comets

• Asteroid belt

• Kuiper belt

• Oort cloud

Kevin is describing the orbit of Earth. At what point in Earth's orbit is Earth farthest from the sun?

• when Earth reaches aphelion

• when Earth reaches perihelion

• when Earth reaches its fastest speed

• when Earth reaches its average distance from the sun