Sciences
Quizz Sciences

Astronomy & Cosmology

1 793 played - 10 yrs ago
Based on Khan Academy Science and Cosmology Videos
A summary is posted at the website link and at myonlinehomeschool. blogspot.com
 
QUIZ 30 QUESTIONS
63%
1

The _________ is 109 x the circumference of the Earth

2

150 million Km is __________ or the distance of the earth from the sun

3

It takes __________ for light to travel from the Sun to the Earth

4

________ is considered a dwarf planet and is located within the Kuiper belt

5

The largest planet is__________

6

The _____________ is speculated to be about 1 light year from the sun

7

The _______________ is super high velocity particles of electrons and protons projected from the Sun traveling at 400 km/sec

8

The ____________ is where the velocity of the forces of the sun particles slow because of hydrogen and helium

9

The four space telescopes in the NASA Great Observatories program are :

10

Voyager 1, now located as of 2012 in the heliosheath may become the first manmade object to ever______________

11

Scientists think that a super dense _____________ is at the center of our galaxy

12

There are about ____________ stars in the Milky Way Galaxy

13

The nearest large galaxy, the ____________ galaxy has trillions of stars

14

It is about _____________ to the edge of the known or visible universe

15

The objects at the edge of the known universe are now about 40 or 45 billion light years away due to _____________

16

The prevailing theory of how the universe began is the_______________

17

The Big Bang theory is that the Universe began as an infinitely small ____________ and expanded from there

18

Alan Guth proposed that there was a major period of ____________ to account for the issue of "homogeneity" in the Big Bang Theory

19

We know that the universe

20

At ______________ there is enough pressure and temperature for fusion to occur in a star.

21

Our Sun is a ________________ star, super high pressure and temperature keeps it from collapsing as the gravitational force is offset

22

A ___________ is an interstellar gas or cloud of Hydrogen gas which is a breeding ground for the birth of stars

23

The apparent change in position because of the change in line of sight is called__________

24

A ____________ is the distance of something that has a parallax angle of 1 arc second

25

If a star is more than 20 x the size of our sun, it will eventually turn into a ________

26

63, 115 au = _________

27

We know whether a star's brightness is because it is closer or because it is brighter because of the work of Henrietta Swan Leavitt and her work with ____________

28

There are two types of black holes__________ and _____________

29

Scientists say that the Milky Way has a black hole at the center because of

30

______________ is the change in frequency of a wave or other periodic event fo ran observer moving relative to its source.


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