Answers2001310 Earth Science Sem 1 - ReevesStars

Stars Answers

0 verified answers1 views
1
Free Preview

What is the main element that stars are made of?

A
helium
B
hydrogen
C
magnesium
D
sodium
2
Free Preview

Which object forms when a supergiant explodes?

A
a red giant
B
a protostar
C
a white dwarf
D
a neutron star
3

Which factor causes gas and dust to pull together during the first stage of star formation?

A
density
B
gravity
C
heat
D
pressure
4

How do spectrographs help astronomers classify stars?

A
They determine the size of stars.
B
They evaluate the color of stars.
C
They measure the brightness of stars.
D
They analyze the composition of stars.
5

Which characteristic is used to measure the amount of light radiated by a star?

A
size
B
color
C
luminosity
D
temperature
6

What is the Sun classified as on the Hertzsprung-Russell diagram?

A
red giant
B
supergiant
C
white dwarf
D
main sequence star
7

What causes a star to shine brightly?

A
the color that is produced
B
the energy that is released
C
the amount of gravity that is present
D
the types of elements that are present
8

How is the Sun classified?

A
as a giant star
B
as a medium star
C
as a white dwarf
D
as a neutron star
9

Which event signals the birth of a star?

A
A core shrinks and explodes in a supernova.
B
A protostar collapses, becoming dense and hot.
C
Extreme heat and pressure causes nuclear fusion.
D
A mass of gas and dust grows and forms a protostar.
10

Which color are the hottest stars?

A
blue
B
orange
C
red
D
yellow

Did you find these answers helpful?

More from this Course

Quiz
10 verified answers

Stars

Quiz
10 verified answers

Stars

Quiz
10 verified answers

The Sun

Stars Answers — 2001310 Earth Science Sem 1 …