Quiz about Star Practice 1

Question 1

The frequency of infrared waves is..

Accepted Answer

1012 Hz

Answer

1020 Hz

Answer

104 Hz

Answer

1015 Hz

Question 2

What is the correct order of the visible light spectrum starting with the longer wavelength?

Accepted Answer

Red, orange, yellow, green, blue, indigo, violet

Answer

Red, yellow, orange, blue, violet, indigo

Answer

Violet, indigo, blue, green, yellow, orange, red

Answer

Green, yellow, blue, indigo, red, orange

Question 3

What is the correct order of the visible light spectrum starting with the longer wavelength?

Accepted Answer

Red, orange, yellow, green, blue, indigo, violet

Answer

Red, yellow, orange, blue, violet, indigo

Answer

Violet, indigo, blue, green, yellow, orange, red

Answer

Green, yellow, blue, indigo, red, orange

Question 4

What gases are in the unknown mixture?

Accepted Answer

Gas A & Gas D

Answer

Gas B & Gas D

Answer

Gas C & Gas B

Answer

Gas D & Gas C

Question 5

Which color has the longest wavelength?

Accepted Answer

Red

Answer

Yellow

Answer

Green

Answer

Purple

Question 6

Scientists observed a celestial object emitting a wavelength of 3 x 10^-10m. What type of telescope did the scientists have to use to view this?

Accepted Answer

X-ray

Answer

Radio wave

Answer

Infrared ray

Answer

Gamma Ray

Question 7

Scientists observed a celestial object emitting waves with a frequency of 1.41 x 10⁸Hz. What type of telescope did the scientists have to use to view this object?

Accepted Answer

Microwave

Answer

Radio wave

Answer

X-ray

Answer

Ultraviolet wave

Question 8

The frequency of an x-ray is --

Accepted Answer

1.41 x 10¹⁸ Hz

Answer

1.41 x 10^-10 Hz

Answer

1.41 x 10¹⁰ Hz

Answer

1.41 x 10^-18 Hz

Question 9

The wavelength of an infrared ray is --

Accepted Answer

10-5 m

Answer

1012 Hz

Answer

105 m

Answer

10-12 Hz

Question 10

Scientists observed a celestial object emitting a wavelength of 3 x 10³m. What type of telescope did the scientists have to use to view this?

Accepted Answer

Radio wave

Answer

Infrared ray

Answer

X-ray

Answer

Gamma Ray

Question 11

Select the correct order of waves on the EMS from the longest wavelength to the shortest wavelength

Accepted Answer

Radio, Micro, Infra, Visible, Ultra, X-ray, Gamma

Answer

Gamma, X-ray, Ultra, Vis, Infra, Micro, Radio

Answer

Vis, Micro, Infra, Ultra, X-ray, Gamma, Radio

Answer

Micro, Radio, Vis, Infra, Ultra, X-ray, Gamma

Question 12

Which has the SHORTEST wavelength and, therefore, the highest frequency/most energy

Accepted Answer

Gamma Rays

Answer

Radio waves

Answer

Ultraviolet Rays

Answer

X-rays

Question 13

The distance between two crests or two troughs of a wave is called:

Accepted Answer

wavelength

Answer

frequency

Answer

amplitud

Answer

hertz

Question 14

Which of the following electromagnetic waves has the lowest energy?

Accepted Answer

infrared light

Answer

visible light

Answer

ultraviolet light

Answer

x-rays

Question 15

How are electromagnetic waves different from other waves?

Accepted Answer

They can travel through empty space

Answer

They have very short wavelengths

Answer

They transmit energy instead of matter

Answer

They can change direction by reflection

Question 16

In the diagram given, what happens as we move to the left?

Accepted Answer

Stars get Hotter

Answer

Stars Get Larger

Answer

Stars get Colder

Answer

Stars get Brighter

Question 17

Which color of star is the coolest?

Accepted Answer

Red Star

Answer

Yellow Star

Answer

Orange Star

Answer

Blue Star

Question 18

Stars are formed in a cloud of gas and dust called a -

Accepted Answer

nebula

Answer

black hole

Answer

white dwarf

Answer

Super Giant

Question 19

Our solar system is located inside a galaxy called the _____________.

Accepted Answer

Milky Way

Answer

Local Group

Answer

Andromeda

Answer

Constellation

Question 20

Look at the H-R diagram. Which star is
sort of cool, dim (not too much light), and red?

Accepted Answer

Barnard's star

Answer

Betelguse

Answer

Sirius B

Answer

Procyon B

Question 21

Which fact about the SUN is FALSE?

Accepted Answer

The sun is near the center of a disc-shaped galaxy of stars.

Answer

The sun is a medium sized star.

Answer

The sun is thousands of times closer to the Earth than any other star.

Answer

The sun is about 2/3 of the way out from the middle of the Milky Way.

Question 22

Which is an example of a Main Sequence star?

Accepted Answer

our Sun

Answer

Betelgeuse

Answer

Sirius B

Answer

Polaris

Question 23

The HR Diagram shows a relationship of a star's surface temperature and its

Accepted Answer

absolute magnitude

Answer

color

Answer

size

Answer

apparent magnitude

Question 24

In ______________ ______________ stars, hydrogen atoms fuse into helium and energy is released in a process called fusion.

Accepted Answer

main sequence

Answer

supernova

Answer

pulsar

Answer

white dwarfs

Question 25

The best description of a super giant star would be -

Accepted Answer

cool and bright

Answer

hot and bright

Answer

hot and dim

Answer

average brightness and temp

Question 26

Our sun is one of billions of stars in the Milky Way galaxy; which is a _________________________ galaxy.

Accepted Answer

spiral

Answer

elliptical

Answer

elongated

Answer

irregular

Question 27

Galaxies are collections of gas, dust, and billions of stars held together by _________________.

Accepted Answer

gravity

Answer

fusion

Answer

the big bang

Answer

black holes nearby

Question 28

Energy is created in the core when two _____________ atoms join together to form a ______________ atom.

Accepted Answer

hydrogen, helium

Answer

helium, hydrogen

Answer

carbon, hydrogen

Answer

nitrogen, helium

Question 29

What is the best description of a nebula?

Accepted Answer

a cloud of gas and dust where stars are formed

Answer

a cloud of gas and dust that produce light due to fusion

Answer

a large group of stars held together by gravity

Answer

a star and planets held together by gravity

Question 30

Which star has the lowest temperature?

Accepted Answer

C

Answer

A

Answer

B

Answer

D

Question 31

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

Accepted Answer

G

Answer

M

Answer

K

Answer

F

Question 32

What is the definition of luminosity?

Accepted Answer

The brightness of a star

Answer

The darkness of a star

Answer

The color of the star

Answer

The shape of the star

Question 33

To get the sun to appear bigger in our sky, how would the distance between the sun and earth have to change?

Accepted Answer

Earth would have to move closer to the sun

Answer

Earth would have to move farther from the sun

Question 34

Which of the following best describes a star?  A star is a celestial body ---

Accepted Answer

composed of gases that emit light due to nuclear reactions

Answer

composed of rock and metal with a very high density

Answer

that is too big to be an asteroid, but too small to be a planet.

Answer

that rotates on an axis and revolves around the Sun

Question 35

Stars are made up mostly of which two elements?

Accepted Answer

Hydrogen and Helium

Answer

Mercury and Strontium

Answer

Iron and Potassium

Answer

Krypton and Bismuth

Question 36

Zeta Eridani has a temperature of 40,000 what is its spectral class?

Accepted Answer

Spectral Class O

Answer

Spectral Class A

Answer

Spectral Class G

Answer

Spectral Class M

Question 37

At 10,000 degrees Celsius, hydrogen begins to change into helium and energy is released in a process called

Accepted Answer

nuclear fusion

Answer

supernova

Answer

pulsar

Answer

nuclear fission

Question 38

All stars begin their life in a

Accepted Answer

Nebula

Answer

Main Sequence

Answer

Protostar

Answer

Black Dwarf

Question 39

What are the final two stages of a medium mass star?

Accepted Answer

white dwarf - black dwarf

Answer

neutron star - black hole

Answer

supernova - neutron star

Answer

pulsar - neutron star

Question 40

The life cycles of stars are determined by their:

Accepted Answer

mass (size)

Answer

color

Answer

distance from Earth

Answer

luminosity

Question 41

______ is a force that causes dust particles to stick together in a nebula.

Accepted Answer

gravity

Answer

nuclear fusion

Answer

hydrogen

Answer

friction

Question 42

Most stars are made of which elements?

Accepted Answer

Hydrogen and Helium

Answer

Hydrogen only

Answer

Hydrogen and Lithium

Answer

Hydrogen and Sodium

Question 43

A gigantic explosion that causes the death of a large star is called

Accepted Answer

supernova

Answer

pulsar

Answer

red giant

Answer

black hole

Question 44

A ________ is an object so dense with so much gravity that even light cannot escape.

Accepted Answer

blackhole

Answer

neutron star

Answer

white dwarf

Answer

black dwarf

Question 45

Which of the following list the correct order of the life cycle of massive stars?

Accepted Answer

Nebula --> protostar --> main sequence --> red supergiant --> supernova --> blackhole

Answer

Nebula --> protostar --> main sequence --> red giant --> planetary nebula --> white dwarf --> black dwarf

Answer

Nebula --> protostar --> main sequence --> supernova --> red giant --> blackhole

Answer

Nebula --> protostar --> blackhole --> red supergiant --> supernova --> main sequence

Question 46

A star at the stage in its life cycle when it stops burning hydrogen, begins burning helium, and expands to a large, low-density star.
What stage in the life cycle does this describe?

Accepted Answer

Red Giant or Red Supergiant

Answer

Supernova

Answer

Black Hole

Answer

Main Sequence

Question 47

What fuel do stars use?

Accepted Answer

Hydrogen

Answer

Oxygen

Answer

Carbon

Answer

Iron

Question 48

Larger stars (stars with more mass) have a longer life cycle.

Accepted Answer

False

Answer

True

Question 49

A relatively small, dense star at the end of its life cycle, which generates little or no energy and has contracted to its densest state.
What stage in the life cycle does this describe?

Accepted Answer

White Dwarf

Answer

Black Hole

Answer

Nebula

Answer

Red Giant

Question 50

A large cloud of gas and dust in outer space ejected by an aging star near the end of its life cycle.
What stage in the life cycle is this describing?

Accepted Answer

Planetary Nebula

Answer

Main Sequence

Answer

Black Hole

Answer

Neutron Star

Question 51

This is an image of the formation of a star, also known as a ....

Accepted Answer

Stellar Nebula

Answer

Main Sequence

Answer

Planetary Nebula

Answer

Supernova

Question 52

All H-R diagrams show what about stars?

Accepted Answer

brightness and temperature

Answer

size and mass

Answer

name and location

Answer

fusion of elements

Question 53

A star is born when it begins...

Accepted Answer

nuclear fusion

Answer

nuclear abrasion

Answer

chemical reaction

Answer

nuclear fission

Question 54

A white dwarf is the final stage for _________ mass stars like our Sun.

Accepted Answer

small/medium

Answer

large

Answer

super massive

Question 55

Which type of stars are fusing Helium and heavier elements?

Accepted Answer

Red Giants

Answer

Main Sequence

Answer

White Dwarfs

Answer

Blue Giants

Question 56

A main sequence star is composed mostly of what gas?

Accepted Answer

Hydrogen

Answer

Helium

Answer

Carbon

Answer

Iron

Question 57

Main sequence stars will become red giants (or supergiants) when they run out of which fuel?

Accepted Answer

Hydrogen

Answer

Helium

Answer

Neon

Answer

Carbon

Question 58

The path a star takes during its life cycle depends solely on its _____.

Accepted Answer

mass

Answer

temperature

Answer

luminosity

Answer

location

Question 59

As the mass of a star increases, its life expectancy __________ because it burns fuel more rapidly.

Accepted Answer

decreases

Answer

increases

Question 60

A medium-mass star like our sun is expected to live for __________ years.

Accepted Answer

10 Billion

Answer

10 Thousand

Answer

10 Million

Answer

10 trillion

Question 61

A 'baby' star that is still gathering mass in a Nebula and has not begun fusion is called a ___________.

Accepted Answer

Protostar

Answer

Prototype

Answer

Brown Dwarf

Answer

White Dwarf

Question 62

Low to Medium mass stars like our Sun will not explode in a Supernova because they do not have enough mass. They will 'puff off' their outer layers of gas leaving a __________ nebula behind.

Accepted Answer

planetary

Answer

supernova remnant

Answer

shockwave

Answer

black hole

Question 63

Which star would have the longer life span?

Accepted Answer

main sequence

Answer

blue giant

Question 64

When our Sun becomes a Red Giant, it will engulf _______.

Accepted Answer

all the inner planets.

Answer

just Mercury

Answer

the entire solar system

Answer

just Mercury and Venus

Star Practice 1

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