Components of the Universe

Which type of radiation in the electromagnetic spectrum emitted by stars can a human detect with the naked eye?

• Gamma Rays

• Radio Waves

• Microwave Waves

• Visible Light

What is the next closest star to Earth after the Sun?

• Sirius

• The North Star

• Proxima Centauri

• Pluto

A system of stars, gas, dust, and dark matter bound together by gravity is called -

• an asteroid
• a nebula
• a galaxy
• a moon

Tags

NGSS.MS-ESS1-2

Stars are made mostly of which two elements?

• Selenium and sodium
• Astatine and arsenic
• Chlorine and cesium
• Hydrogen and helium

Tags

NGSS.HS-ESS1-3

A large celestial body made of gases that emits light due to nuclear reactions is called -

• a galaxy
• a nebula
• a comet
• a star 

Tags

NGSS.HS-ESS1-3

NGSS.HS-ESS1-1

An interstellar cloud of dust and gases that serves as a location for the formation of new stars is -

• a meteor
• a planet
• a galaxy
• a nebula

The Hertzsprung-Russell diagram is provided, which is used for classifying stars based on the relationship between their brightness and their temperature and color. Regulus belongs in which of the following classifications?

• Super Giants
• Giants
• Main Sequence Stars
• White Dwarfs

Which of the following is an accurate description of the relationship between components of the universe?

• Stars always contain galaxies
• Galaxies contain many stars
• Stars contain several nebulae
• Nebulae contain many galaxies

A characteristic of a nebula is that it -

• is at the center of the solar system
• is a region where stars are born
• forms halfway through a star's life cycle
• has the coolest temperature in space

A large ball of gas that generates energy by fusing hydrogen atoms

• Galaxies
• Star
• Nebule
• Black holes