Electromagnetic Spectrum, The Sun, The Stars, and Galaxies Exam

At 10,000 degrees Celsius, hydrogen begins to change into helium and energy is released in a process called

• supernova
• pulsar
• nuclear fusion
• nuclear fission

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

NGSS.HS-PS1-8

A small, hot star near the end of its life is a star called a

• white dwarf
• red dwarf
• supergiant
• protostar

As gravity pulls gas and dust into a sphere that becomes denser and hotter, and a sunlike star begins to form, it is called a(n)

• white dwarf
• red dwarf
• supergiant
• protostar

What color are the hottest stars?

• red
• yellow
• orange
• blue

Tags

NGSS.HS-PS4-3

Light Years are a measure of:

• time
• speed
• distance
• light

Proxima Centauri is the closest star to Earth after the Sun and is located 4.3 light years away from Earth. How long does it take light from Proxima Centauri to reach Earth?

• 1 year

• 4.3 years

• 43 years

• 10 trillion years

Energy is created in the core when two _____________ atoms join together to form a ______________ atom.

• helium, hydrogen
• carbon, hydrogen
• nitrogen, helium
• hydrogen, helium

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

In the diagram given, what happens as we move to the left?

• Stars Get Larger
• Stars get Colder
• Stars get hotter

Which of these stars is hottest?

• Red Star
• Yellow Star
• Orange Star
• Blue Star

Which star is the coldest?

• Yellow Star
• Red Star
• Orange Star
• Blue Star

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4