5.2 Test Review

Match the vocab.

• Cloud of gas and dust

• Nebula

• Cooler areas on a sun

• Stellar Equilibrium

• Brightness of a star as seen from Earth

• Apparent Magnitude

• Brightness of star from uniform distance

• Absolute Magnitude

• Balance between fusion and gravity

• Sunspot

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

Which of these would look like the dimmest star?

Tags

NGSS.HS-ESS1-3

Which of the following is giving off more energy and has the higher luminosity?

Tags

NGSS.HS-ESS1-1

Fusion in the ​ (a)   produces Helium and energy. Next, energy in the form of electromagnetic waves slowly travels through the ​ (b)   . Heat continues to cycle through the ​ (c)   . Then, energy is released as visible light by the ​ (d)   . Energy escapes as light, solar wind, and other wavelengths of energy. Energy is absorbed by Earth’s ​​ (e)   .

• core
• radiative zone
• covection layer
• photosphere
• atmosphere

Tags

NGSS.HS-ESS1-1

Which of these stars would have the longest lifespan?

Tags

NGSS.HS-ESS1-1

Which of these stars would have the shortest lifespan?

Tags

NGSS.HS-ESS1-3

During the main-sequence stage, energy is generated in a star's core when

​ (a)   fuses into ​ (b)   .

• hydrogen
• helium
• iron
• uranium
• carbon
• oxygen
• nitrogen

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

How long would a star with the sun's mass stay on the main sequence?

• until it makes iron

• until it makes uranium

• as long as it fuses helium

• as long as it fuses hydrogen

Tags

NGSS.HS-ESS1-1

When does a protostar become a star?

• Carbon fusion ends

• nuclear fission ends

• nuclear fusion begins

• nuclear fission begins

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

During the main sequence stage of a star's life, what two forces are in constant battle?

​ (a)   pushing outwards and ​ (b)   pushing inwards.

• Fusion
• Gravity
• Stellar Rotation
• Magnetic Field
• Magnetic Fields
• Fission