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H-R diagram Notes Quiz

Total questions: 12

Worksheet time: 3600secs

Name
Class
Date
1.

Where would our sun be classified on the H-R diagram?

a)

Main sequence

b)

Super Giant

c)

White Dwarfs

d)

Red Dwarfs

2.

What do we call a "newborn" or "baby" star?

a)

nebulae

b)

white dwarf

c)

protostar

d)

supernova

3.

How is the star life cycle like that of humans?

a)

It isn't.

b)

Stars are born, go through stages, grow old, and eventually die

c)

Stars only live 100 years.

d)

When a mommy star and a daddy star love each other....

4.

Where are stars born?

a)

no new stars are created

b)

supernova

c)

hospital

d)

nebulae

5.

What gas are stars mainly made of?

a)

nitrogen

b)

CO2

c)

hydrogen

d)

oxygen

6.

Stars live out most of their lives in what phase?

a)

white dwarf

b)

red giant

c)

main sequence

d)

blue dwarf

7.

What phase comes after main sequence in a stars life cycle?

a)

main sequence

b)

Red giant

c)

protostar

d)

supernova

8.

Which stars are about half as massive as our sun?

a)

super giants

b)

red giants

c)

red dwarfs

d)

black holes

9.

A white dwarf forms when...

a)

after a star dies

b)

Snow White sings in the forest

c)

a star is born

d)

a low mass star runs out of fuel

10.

What color stars are the hottest?

a)

orange

b)

red

c)

yellow

d)

blue/white

11.

What does luminosity mean?

a)

the absolute measure of radiant energy emitted by a light-emitting object

b)

brightness

c)

a measure of energy out put by a star

d)

all of the above

12.

Roughly what temperature is our sun?

a)

2,500 K

b)

10,000 K

c)

40,000 K

d)

5,000 K