31.1-31.2 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

Characters from stories, animals, and tools

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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 name of Orion´s dogs?

A

Canis major and Canis minor

17
Q

How many basic optical telescopes are there?

18
Q

What does a refracting telescopes use?

19
Q

What does reflecting telescopes use?

20
Q

How are space telescopes more effective than ground telescopes?

A

The images is not distorted.

21
Q

What are the space based telescopes called?

A

Chandra X-Ray Observatory and Spitzer Space Telescope

22
Q

How fast does light travel in space?

A

300,000 km per second

23
Q

What can a spectroscope determine about a star?

A

It can detect a stars composition, surface temperature, and whether it is moving closer or further from
Earth.

24
Q

What color of rays are more frequent?

A

Blue color rays

25
What color of rays are less frequent?
Red color rays
26
Where does stars form from?
A Nebula
27
What does the H and the R stand for in the H-R diagram?
The last names of Einjar Hertzsprung and Henry Russel
28
What is our sun also called?
A Giant Star
29
What are the interior layers of the Sun?
the core, radiation zone, and convection zone
30
What is the atmosphere of the Sun composed of?
Chromosphere and corona
31
Are sunspots hotter or cooler than the surrounding areas?
Cooler
32
Are sunspots permanent?
No