Quiz about Study Guide Chapter 30 STARS

Question 1

A star that is gravitationally bound to another star can either be part of a star cluster or a __________ star.

Accepted Answer

binary

Answer

white dwarf

Answer

constellation

Question 2

Which property of a star is most responsible for determining its life cycle and fate? Mark only one oval.

Accepted Answer

mass

Answer

color

Answer

distance from Earth

Question 3

Following the end of each reaction stage, a massive star becomes a ______________ several times. Mark only one oval.

Accepted Answer

supernova

Answer

red giant

Answer

main sequence star

Question 4

What is the name of the large cloud of gas and dust in space where stars are born? Mark only one oval.

Accepted Answer

nebula

Answer

asteroid

Answer

black hole

Answer

comet

Question 5

Which two characteristics of stars are compared on the Hertzsprung-Russell (H-R) diagram? Select 2 answers.

Accepted Answer

temperature

Accepted Answer

luminosity

Answer

radius

Answer

age

Question 6

Compared to the Sun, the main sequence phase of a low-mass star lasts ____________. Mark only one oval.

Accepted Answer

for a much longer period

Answer

for a much shorter period

Answer

about the same amount of time

Question 7

The apparent shift in a star's position caused by the motion of the observer is called _________________. Mark only one oval.

Accepted Answer

parallax

Answer

luminosity

Answer

apparent magnitude

Answer

absolute magnitude

Question 8

Jackson is curious about where most of the light we see from the sun actually comes from. He learns that it is emitted by the _________________

Accepted Answer

photosphere

Answer

chromosphere

Answer

corona

Answer

prominence

Question 9

Because the ________________ contains 99 percent of the mass in the solar system, it controls the motion of planets.

Accepted Answer

Sun

Answer

Solar system

Question 10

Which layer of the sun's atmosphere is visible during a total solar eclipse?

Accepted Answer

Corona

Answer

Photosphere

Answer

Chromosphere

Question 11

For a star to be stable, it must have __________________________, which is the balance between gravity squeezing inward and pressure from __________________________ and radiation pushing outward. Select 2 answers.

Accepted Answer

b. hydrostatic equilibrium

Accepted Answer

c. nuclear fusion

Answer

a. a large mass

Answer

d. other planets

Question 12

The process in which two or more atomic nuclei join together to form a heavier nucleus, releasing a large amount of energy, is known as ____________________.

Accepted Answer

fusion

Answer

supernova

Answer

nebula

Answer

red giant

Answer

fission

Question 13

Elijah is using a prism to shine white light through and notices that the light spreads out into different colors. The visible light arranged according to wavelengths is called __________________________. Mark only one oval.

Accepted Answer

spectrum

Answer

main sequence

Answer

supernova

Question 14

While stargazing one night, Samuel noticed a group of bright stars in the sky that seemed to form the shape of an animal. He remembered that such groups are often named for animals, mythological characters, or everyday objects. What is this group of stars called? Mark only one oval.

Accepted Answer

constellation

Answer

black hole

Answer

nebula

Question 15

The section of the H-R diagram into which about 90 percent of stars fall is called __________________________. Mark only one oval.

Accepted Answer

main sequence

Answer

solar activity cycle

Answer

nebula

Answer

black hole

Question 16

What are the sudden bursts of energy from the Sun that can affect Earth's atmosphere called?

Accepted Answer

Solar Flares

Answer

Solar Wind

Question 17

Star clusters are either ________________ clusters or ________________ clusters.

Accepted Answer

a. globular

Accepted Answer

c. open

Answer

b. closed

Answer

d. circular

Question 18

Which of the following are commonly used by astronomers to classify different types of stars? Mark all that apply.

Accepted Answer

a. luminosity

Accepted Answer

b. mass

Accepted Answer

c. surface temperature

Accepted Answer

d. diameter

Accepted Answer

e. chemical composition

Question 19

At which stage do both the sun and a massive star begin their formation?

Accepted Answer

They both begin as a nebula

Answer

They both begin as a red giant

Answer

They both begin as a black hole

Question 20

What are the temporary, dark patches on the Sun's photosphere that are cooler than the surrounding regions called?

Accepted Answer

sunspots

Answer

solar prominences

Answer

solar winds

Answer

auroras

Question 21

The total amount of energy emitted by a star in one second is known as its ____________________.

Accepted Answer

luminosity

Answer

magnitude

Answer

distance

Answer

temperature

Question 22

What is the name for a large, bright feature extending outward from the Sun's surface, often in a loop shape?

Accepted Answer

prominence

Answer

coronal mass ejection

Answer

aurora

Answer

sunspot

Question 23

Ron is observing the Sun and wants to see the chromosphere, which is about 2500 km in thickness and has a temperature of 30,000 K. Without using any special filter, during which event would Ron be able to see this layer?

Accepted Answer

Solar eclipse

Answer

Lunar eclipse

Answer

Solar wind storm

Question 24

The brightness of an object if it was placed at a distance of 10 pc (parsec).

Accepted Answer

absolute magnitude

Answer

apparent magnitude

Answer

luminosity

Question 25

What term did the ancient Greeks use to describe the brightness of a star as seen from Earth?

Accepted Answer

apparent magnitude

Answer

absolute magnitude

Question 26

What characteristics are used to classify stars?

Accepted Answer

Temperature/color and brightness

Answer

Flammability, weight, and reactivity

Answer

Conductivity, luster, and density

Answer

Malleability, distance, and viscoscity

Question 27

What star category has the largest stars?

Accepted Answer

Super giants

Answer

White Dwarfs

Answer

Giants

Answer

Main Sequence

Question 28

Which star is the coldest?

Accepted Answer

Red Star

Answer

Yellow Star

Answer

Orange Star

Answer

Blue Star

Question 29

Barnard's Star is about 5.9 light-years from the sun. The star has an approximate temperature of 2,800 K. Based on the diagram, what spectral class does Barnard's Star belong to?

Accepted Answer

Spectral Class M

Answer

Spectral Class O

Answer

Spectral Class B

Answer

Spectral Class A

Question 30

Which spectral class does our star, the sun, belong to?

Accepted Answer

G

Answer

M

Answer

K

Answer

F

Question 31

The HOTTEST stars are usually what color

Accepted Answer

blue

Answer

yellow

Answer

orange

Answer

pink

Question 32

What type of stars are cooler in temperature AND of high luminosity?

Accepted Answer

Red Supergiants

Answer

Blue Giants

Answer

White Dwarfs

Answer

Main Sequence

Question 33

Which of the following best describes the main sequence stage of a star's life?

Accepted Answer

It is when a star fuses hydrogen into helium in its core

Answer

It is when a star forms from a nebula

Answer

It is when a star explodes as a supernova

Answer

It is when a star becomes a white dwarf

Question 34

What is the primary factor that determines the color of a star?

Accepted Answer

Its temperature

Answer

Its distance from Earth

Answer

Its age

Answer

Its luminosity

Study Guide Chapter 30 STARS

36 questions

A star that is gravitationally bound to another star can either be part of a star cluster or a __________ star.

Which property of a star is most responsible for determining its life cycle and fate? Mark only one oval.

Following the end of each reaction stage, a massive star becomes a ______________ several times. Mark only one oval.

What is the name of the large cloud of gas and dust in space where stars are born? Mark only one oval.

Which two characteristics of stars are compared on the Hertzsprung-Russell (H-R) diagram? Select 2 answers.

Compared to the Sun, the main sequence phase of a low-mass star lasts ____________. Mark only one oval.

The apparent shift in a star's position caused by the motion of the observer is called _________________. Mark only one oval.

Jackson is curious about where most of the light we see from the sun actually comes from. He learns that it is emitted by the _________________

Because the ________________ contains 99 percent of the mass in the solar system, it controls the motion of planets.

Which layer of the sun's atmosphere is visible during a total solar eclipse?

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