Stars Quiz

Question 1

What are Stars

Answer 1

A cluster of gas and plasma that forms a shape and gives off luminosity. It can grow and expand; follows a life cycle, and can be measured by size and radiation.
Creates 100% of it’s energy.
There are millions of these in the night sky.

Question 2

Differences between planets and stars

Answer 2

planets- ,made out of larger elements(metals/solids)
stars- made out of prominently fundamental elements like hydrogen and helium(gas, plasma)

Question 3

What causes a star to become so hot.

Answer 3

It takes an intense amount of energy to fuse elements as simple as hydrogen.
When hydrogen fusion happens in immense quantities, it radiates a LOT of heat

Question 4

Luminosity

Answer 4

The total amount of electromagnetic energy emitted per unit of time by a star, galaxy, or other astronomical objects.
Total amount relies on size, age, and temperature.

Question 5

Apparent Brightness

Answer 5

How bright the star appears to a detector here on Earth.
Creates ambient conditions and not the best way to measure a star’s electromagnetic energy.

Question 6

Temperature and Color scale

Answer 6

10000-25000(Kelvin)- Violet/Blue
6000-10000(Kelvin)- White
4000-6000(Kelvin)- Yellow
3000-4000(Kelvin)- Orange
0-3000(Kevlin)- Red

Question 7

Giants

Answer 7

Stars with large photospheres and that emit cooler temperatures.

Question 8

Dwarfs

Answer 8

Stars with a smaller photosphere that emit intense amounts of heat.
Example: The sun is a white-dwarf.

Question 9

Failed Stars

Answer 9

Objects that we can’t even see with bare eyes and that do not undergo nuclear fusion, evolve like a typical star, and does not emit any heat.

Question 10

Alpha Centauri

Answer 10

A triple star system that is most closest to our solar system.
Composed of: Alpha Centauri A, Alpha Centauri B, and Proxima Centauri.

Question 11

Proxima Centauri

Answer 11

Part of the alpha Centauri system and the closest star to the earth. We cannot even spot this star in the sky due to it’s low levels of luminosity and it’s slow rotation around the star system.

Question 12

Altair

Answer 12

The brightest star in the northern constellation of Aquila and the 12th brightest star in the night-sky.
Has 11 times more luminosity than the sun and is roughly 2x the diameter of the sun.

Question 13

Fomalhaut

Answer 13

A white star of the first magnitude that is the brightest star in the constellation Piscis Austrinus.
It’s giant expo habitat is home to millions of celestial bodies.

Question 14

Arcturus

Answer 14

The brightest start in the Earth’s sky in the northern hemisphere

Question 15

Betelgeuse

Answer 15

A red super giant star that sits within the constellation of Orion. It has high levels of luminosity and it millions of times bigger than the sun. If replaced in the solar system, every planet from Mars and part of the asteroid belt would be swallowed up.

Question 16

Neutron Star

Answer 16

any of a class of extremely dense, compact stars thought to be composed primarily of neutrons.
their cores have such powerful gravity that most positively charged protons and negatively charged electrons in the interior of these stars combine into uncharged neutrons

Question 17

Black-Hole

Answer 17

a cosmic body of extremely intense gravity from which even light cannot escape.
It’s significantly more denser than a neutron star.

Question 18

CW Leonis

Answer 18

a variable carbon star that is embedded in a thick dust envelope.
It is composed of hydrogen, helium, and carbon.
It is only slightly smaller than Betelgeuse.

Question 19

W2102

Answer 19

The hottest start in the entire universe