Chapter 31 section 1+2

Question 1

star pattern that appears to form images, is used by astronomers to locate and name stars, and often is named for mythological figure

Answer 1

constellation

Question 2

telescope that collects and magnifies radio waves

Answer 2

radio telescope

Question 3

distance light travels in one year- about 9.5 trillion km

Answer 3

light-year

Question 4

device that disperses light on its component wavelengths, using a prism diffraction grating

Answer 4

spectroscope

Question 5

interstellar cloud of gas, ice and dust

Answer 5

nebula

Question 6

section of the H-R diagram that is plotted from the upper left to the lower right and contains 90 percent of all known stars

Answer 6

main sequence

Question 7

late stage in a star’s life cycle that occurs when its hydrogen fuel is depleted, its core contracts and its outer layers expand and cool

Answer 7

giant star

Question 8

giant star that has lost its outer layers, leaving behind a hot, dense core that continues to contract under gravity

Answer 8

white dwarf

Question 9

a region in space that is so dense that nothing can escape its inward pull of gravity

Answer 9

black hole

Question 10

iron accumulates in the core of a super giant star, energy is absorbed and the star can no longer absorbed and the star can no longer support itself

Answer 10

supernovas

Question 11

when stars explodes, it leaves behind a ball of neutrons

Answer 11

neutron star

Question 12

layer of sun that emits light into space

Answer 12

photosphere

Question 13

darker, cooler areas of the sun’s photosphere

Answer 13

sunspots

Question 14

How did some constellations get their names?

Answer 14

Animals, characters in stories, and tools

Question 15

What is the constellation that is named after a great hunter?

Answer 15

Orion’s belt

Question 16

What does canis major mean?

Answer 16

Big dog

Question 17

What does canis minor mean?

Answer 17

small dog

Question 18

How many basic optical telescopes are there?

Answer 18

2

Question 19

What is the name of the telescope that uses a convex lens?

Answer 19

Refracting telescope

Question 20

What is the name of the telescope that uses mirrors?

Answer 20

Reflecting telescope

Question 21

Why are space telescopes are better than other telescopes?

Answer 21

Earth’s atmosphere limits what ground-based telescopes can achieve

Question 22

What are the name of the space telescopes?

Answer 22

Chandra X-Ray Observatory and the Spritzer Space Telescope

Question 23

What are the three things that a spectroscope can determain?

Answer 23

a star’s chemical composition, its surface temperature, and moving away from or toward earth.

Question 24

If a star is farther away from earth what color would it be and what would the wave length be?

Answer 24

Red and the wavelength is less frequent

Question 25

If a star is closer from earth what color would it be and what would the wave length be?

Answer 25

Blue and more frequent

Question 26

Where do stars form from?

Answer 26

Nebula

Question 27

What is the sun known as?

Answer 27

Giant star

Question 28

What is the inner part of the sun?

Answer 28

the core

Question 29

What is the second most inner layer of the sun?

Answer 29

the radiation zone

Question 30

What is the third most inner layer of the sun?

Answer 30

The convection zone

Question 31

What is thermal energy

Answer 31

produced by nuclear fusion in the core

Question 32

What is the surface of the sun called?

Answer 32

photosphere

Question 33

What is the atmosphere above the photosphere

Answer 33

Chromosphere and the corona

Question 34

Are sun spots permanent features?

Answer 34

No