The Solar System and Gravity

Which of the following best describes the formation of the solar system?

• The Sun ejected rocky material, which later went on to form the planets.

• 
  A rotating disk of gas and dust was drawn together by the force of gravity.

• One very large planetary body broke apart into several smaller planets.

• Several stars of different masses cooled and formed the planets and the Sun.

Tags

NGSS.MS-ESS1-2

What would happen to Earth if the Sun's gravity disappeared?

• Earth would rotate at the same speed, but in the opposite direction.

• Earth would continue in the same orbit around the Sun, at the same speed.

• 
  Earth would stop orbiting the Sun and begin moving in a straight line.

• 
  Earth would continue in the same orbit around the Sun, but begin to slow down.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Which of the following aspects of the solar system contributes most to the motion of the planets?

• Friction with the atmosphere

• Magnetic field around the planets

• Gravitational attraction of the Sun

• Radiation from nearby stars

Tags

NGSS.MS-ESS1-2

Why are planets round?

• Gravity

• Thermal Energy

• Magnetism

• Chemical reactions

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Which arrangement of model planets represents the greatest gravitational attraction?

• 
• 
• 
• 

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Which planetary bodies are made mainly of gases and no solid surface, including Jupiter, Saturn, Uranus, and Neptune?

• gaseous planet

• rocky planet

• dwarf planet

• retrograde planet

What is the force of gravity between two objects like Earth and the Sun or the Earth and the moon called?

• gravitational pull

• force of attraction

• repulsion

• magnetic force

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

What is a natural object that revolves around a planet called?

• Moon

• Ring

• Comet

• Asteroid

Tags

NGSS.MS-ESS1-1

What are the large celestial bodies that revolve around the Sun called?

• moon

• planet

• star

• nebula

Tags

NGSS.MS-ESS1-3

Any planet with a solid surface, such as Mercury, Venus, Earth or Mars:

• rocky planet

• gaseous planet

• dwarf planet

• moon