Big Bang, Stars and Galaxies

Of the following options, which object appears the brightest?

• Sirius

• Betelgeuse

• Barnard's star

• Polaris

Answer explanation

The brighter the star, the more negative its number. The dimmer the star, the more positive its number.

What is the apparent magnitude of the full moon?

• 11

• 0

• 3.8

• -12.5

The sun is currently a....

• Red Giant star

• White Dwarf star

• Main Sequence star

• Red Supergiant star

Tags

NGSS.HS-ESS1-1

How do stars get their energy?

• Fission of helium into hydrogen

• Fusion of helium into hydrogen

• Fission of hydrogen into helium

• Fusion of hydrogen into helium

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

One piece of evidence for the Big Bang that Edwin Hubble observed is that distant galaxies are...

• Blue shifted

• Green shifted

• Yellow shifted

• Red shifted

Tags

NGSS.HS-ESS1-2

A light year measures

• Time

• Distance

• Speed

• Volume

Compressed waves moving toward an observer have wavelengths of higher frequency. With sound, this would sound higher pitched. With light, this would appear what color?

• Blue

• Green

• Yellow

• Red

Answer explanation

Blue is a high frequency color. Red is a low frequency color.

Tags

NGSS.HS-PS4-1

Light years are best used to measure the distance between...

• States and countries

• Planets and space debris

• Stars and galaxies

• Houses and stores

Answer explanation

Light years represent large distances, such as the distances between stars or galaxies!

1 light year is equal to 9.5 trillion kilometers!

Where are we in the Milky Way galaxy?

• A

• B

• C

• D

Answer explanation

We are part of the Milky Way galaxy (so C and D are not the answer). We aren't in the center of our galaxy (so B is not the answer). We are on an "arm" of our galaxy, which is why we can see other "arms" of the galaxy in the night sky!

What is the name of a collapsed exploding star?

• Black hole

• Stellar Nebula

• Supernova

• White Dwarf

Tags

NGSS.HS-ESS1-3