Chapter 31.1 Vocab Flashcards

1
Q

A group of stars that form a pattern to resemble something.

A

Constellations

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2
Q

What collects and amplifies radio waves?

A

Radio Telescope

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3
Q

What is the distance light travels in one year called?

A

A light-year

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4
Q

What separates light into its component wavelengths?

A

A Spectroscope

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5
Q

What is a star formed from a large cloud of gas,ice, and dust called?

A

Nebula

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6
Q

What includes the hot stars from the upper left corner to the cooler stars to the lower right corner?

A

Main sequence

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7
Q

What is it called as the star’s core contracts, the temperature increases and the star evolves.

A

Giant Star

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8
Q

What forms as the core of a giant star no longer supports fusion and the star’s outer layers escape into space?

A

White dwarf

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9
Q

What is an area in space that is so dense that nothing can escape its pull of gravity?

A

Black hole

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10
Q

What is the layer of the sun that emits light into space called?

A

Photosphere

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11
Q

What are dark, cool areas in the photosphere where the sun’s magnetic fields has weakend called?

A

Sunspots

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12
Q

What is a giant explosion in which the collapsing star is 10 billion K and the atomic nuclei in the core split into neutrons and protons called?

A

Supernova

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13
Q

What is the ball of neutrons that are formed when a star explodes called?

A

Neutron star

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14
Q

How did the constellations get their names?

A

From Characters, tools and animals

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15
Q

What is the constellations name of the great hunter?

A

Orion’s Belt

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16
Q

What are the constellations names of Orion’s hunting dogs?

A

Canis major and canis minor

17
Q

How many basic optical telescopes are there?

A

Dos not Uno

18
Q

What does a refracting telescope use?

A

Lenses

19
Q

What does a reflecting telescope use?

A

Mirrors

20
Q

How are space telescopes more effective than ground telescopes?

A

The images are not distorted by the atmosphere

21
Q

What are the two space telescopes?

A

Chandra X-ray and the Spitzer Space Telescope

22
Q

How fast does light travel in space?

A

300,000 km/s

23
Q

What can a spectroscope determine about a star?

A

It can detect a stars composition, surface, and whether it is moving closer to us

24
Q

What colors of rays are more frequent closer for stars?

A

Blue

25
Q

What color of rays are stars that are further away from Earth?

A

Red

26
Q

Where do stars form from?

A

A Nebula

27
Q

What do the H and R stand for in the H-R diagram?

A

The H stands for Elnjar Hertzsprung and the R stands for Henry Russell

28
Q

What is our sun also known as?

A

A Giant Star

29
Q

What are the interior layers of the sun?

A

The core, the radiation zone, and the convection zone

30
Q

What is the atmosphere of the Sun composed of?

A

Chromosphere and the Corona

31
Q

Are sunspots cooler or hotter than the surrounding areas?

A

Cooler

32
Q

Are sunspots permanent?

A

NO!