SCI10 Astronomy Revision

Most stars are identified as ___________ on an H-R Diagram?

• Supergiants
• Giants
• Main Sequence
• White Dwarf

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

What is the first phase in the life cycle of a star?

• nebula

• protostar

• main sequence star

• white dwarf

Once a star uses up all of the _________ in its core, the star will expand into a giant or supergiant

• light

• heat

• energy

• hydrogen

Tags

NGSS.HS-ESS1-1

What determines if a star becomes a giant or a supergiant?

• star mass

• star temperature

• star color

• star luminosity

Tags

NGSS.HS-ESS1-3

After a low mass star sheds its outer layers into a planetary nebula, it leaves behind its core, called a

• White Dwarf

• Neutron Star

• Protostar

• Zero-age main sequence

The smallest, densest stars in the universe are called...

• protostars
• white dwarfs
• neutron stars
• main sequence stars

How do star clusters form?

• by nebulae in interstellar space

• by a congregation of mass through black holes

• through massive shock waves

• through worm holes in space/time

What is the doppler effect?

• a change in the frequency of sound, light or other waves to cause a change in pitch

• A change in pitch that causes frequency, sound, light and other waves to disappear

• I have no idea

• A change in sound that alters frequency

Tags

NGSS.HS-PS4-1

when a noise if moving away from an observer...

• the pitch is lower

• the pitch is higher

• the noise is smoother

• the energy is lower

Tags

NGSS.HS-PS4-1

when the frequency is higher what happens to the wavelength?

• the wavelength gets longer

• The wavelength gets shorter

• the wavelength doesn't change

• I have no idea

Tags

NGSS.HS-PS4-1