Unit 1 Review

Which list is organized from SMALLEST to LARGEST?

• Planet, Galaxy, Solar System, Universe

• Solar System, Planet, Universe, Galaxy

• Universe, Solar System, Planet, Galaxy

• Planet, Solar System, Galaxy, Universe

Over time, scientists have changed their model of our solar system. It has transitioned from

• a Sun-centered to a Moon-centered model.

• a Sun-centered to an Earth-centered model.

• an Earth-centered to a Sun-centered model.

• a Moon-centered to an Earth-centered model.

Planet ⇒ ____________ ⇒ Galaxy ⇒ Universe

What is missing in the ordered sequence of the cosmos?

• Sun

• Earth

• Nebulae

• Solar System

What can you tell about the location of the Sun from this illustration of the Milky Way?

• It is outside of the Milky Way.

• 
  It is near an outer arm of the Milky Way.

• It is on the right side of the Milky Way.

• It is within the Central Bulge of the Milky Way.

In this illustration, the rings around the Sun represent

• orbits.

• sun rays.

• 
  radiation.

• dust particles.

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

Almost everything in the universe orbits around a central object. The planets orbit the Sun and Moons orbit planets. The force MOST responsible for these orbits is

• 
  

• gravity.

• inertia.

• strong force.

• electromagnetic.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

If the force of gravity between the Sun and the planets disappeared, what would happen to the path the planets follow?

• They would continue to rotate around the sun.

• The planets velocity would increase as it got closer to the sun.

• The speed at which they are moving would significantly slow down.

• They would move in a straight line at a constant speed and velocity.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

The image in the picture is

• a comet.

• 
  a meteoroid.

• 
  a star.

• 
  an asteroid.

Venus is sometimes thought of as Earth's sister planet. In some ways the two planets are very similar. Venus is only slightly smaller than Earth. Venus also has a similar density and chemical composition. Yet Venus does not support life like Earth.

What is one important reason why Venus cannot support life as we know it?

• Venus has no atmosphere.

• Venus' surface temperature is about 480^oC.

• The water on Venus' surface is too hot to support life.

• Venus' dense clouds keep the planet's temperature very low.

Which observed feature of the universe, discovered by Edward Hubble, is illustrated in the diagram?

• entropy

• expansion

• radiation

• redshift

Tags

NGSS.HS-ESS1-2