Chapter 20 Test: The Universe

A large celestial body that is composed of gas and that emits light is known as a

• star

• black hole

• supernova

Which of the following stars is NEAREST to Earth?

• Orion

• the sun

• Rigel

Tags

NGSS.5-ESS1-1

A light year is

• the time it takes for Mars to travel around the sun

• the distance light travels in one year

• the time it takes for the moon to go through a lunar cycle

Tags

NGSS.MS-ESS1-3

A light year is equal to

• 9.5 x 10^15 meters

• 7.5 x 10^10 meters

• 5.9 x 10^15 meters

Nuclear fusion takes place

• in the core of a star

• in a supernova

• in a black hole

Tags

NGSS.HS-ESS1-1

Which process combines the nuclei of hydrogen to form helium?

• Nuclear fission

• Nuclear fusion

• Radioactive decay

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

NGSS.HS-PS1-8

______ Energy that is transferred to individual atoms and transferred to other atoms in random directions is known as a.

• radiation

• fusion

• fission

Before stars die, they become ______.

• white dwarf

• red giants

• black holes

A white dwarf ______.

• no longer performs fusion

• is slowly heating up

• slowly increases in size

A large reddish star late in its life cycle is called a ______.

• quasar

• big red

• red giant