Astronomy: Obeserving the Sky

Question 0

Which civilization directly affected the development of our modern calendar?

Answer 0

Romans

Question 1

The length of a day is__________________.

Answer 1

Earth rotating in its axis once

Question 2

According to the _________ theory! the earth is at the center of the universe.

Answer 2

Ptolemaic

Question 3

The first scientist to successfully use a telescope to observe the night sky was _____________

Answer 3

Galileo

Question 4

If earth rotated faster, what would be shorter

Answer 4

Days

Question 5

Copernicus theory was unpopular when he first proposed it because he stated that the sun was ____________________________

Answer 5

At the center of the universe

Question 6

The first scientist to explain why planets orbit the sun was____________

Answer 6

Newton

Question 7

The calendar used most widely today was first developed by the ______________

Answer 7

Romans

Question 8

The time required for the earth to orbit the sun once is called a _________

Answer 8

Year

Question 9

Most calendars organize time within a single unit called a _______

Answer 9

Year

Question 10

A _________ is roughly the amount of I time required for the moo to orbit the earth once

Answer 10

Month

Question 11

Ancient __________ cultures had very complex calendar system that linked the cycles of the sun, the moon, and Venus

Answer 11

Mayan

Question 12

Ancient __________ cultures based their calendars in the moon and the sun. The number of months in their calendar alternated each year between 12 & 13 months.

Answer 12

Hebrew

Question 13

Ancient __________ culture based their calendars on the sun, with twelve 30 day months and one 5-day month at he end of the year

Answer 13

Egyptian

Question 14

Ancient ________ cultures made calendars as early as the fourteenth century B.C. based on the moons phases and positions in the sky

Answer 14

Chinese

Question 15

Our modern calendar began with the early _________ calendar, which had 365 days in a year and 7days in a week

Answer 15

Roman

Question 16

When astronomers determined that there we’re are about 365.25 days in year, Julius Caesar corrected this by ________________________

Answer 16

Adding 90 days to the calendar and adding a leap year every 4 years

Question 17

The earliest record of astronomical observations is a 6,0000 a 7,000 year old group of stones near Nabta. Some of these stones would have lined up with the sun during the __________________

Answer 17

Summer solstice

Question 18

The longest day of the year occurs on the day of the ____________________

Answer 18

Summer solstice

Question 19

Some of the stones at _______________ are aligned with the sunrise during the winter and summer solstices

Answer 19

Stonehenge

Question 20

Ancient __________ cultures could be predict eclipses as early as 1000 B.C.

Answer 20

Chinese

Question 21

Ancient ________________ cultures precisely tracked and could forecast the position of the planet and the moon, which enabled them to make an accurate calendar

Answer 21

Babylonian

Question 22

Ancient __________ cultures tried to understand the place of earths and humans in the universe using philosopher, logic, and mathematics

Answer 22

Greek

Question 23

____________ Successfully explained why the phases if the moon and eclipses occur, and correctly argued that earth is a sphere

Answer 23

Aristotle

Question 24

Ancient _______________ cultures had complex systems of mathematics and astronomy, which enabled them to erect buildings that aligned with celestial bodies

Answer 24

Native Americans

Question 25

Ancient _________ cultures invented the astrolabe, algebra, and the number systems that we use today

Answer 25

Arab

Question 26

Although _______________ incorrectly thought that the earth is at the center if the universe, his theory predicted the motions of the planets better than any known method at that time

Answer 26

Claudius Ptolemy

Question 27

_______________ was the first to publish a theory that eventually revolutionized astronomy- that the sun is at the center of the universe and the planets orbit the sun

Answer 27

Copernicus

Question 28

_________ recorded very precise observations of the planets and stats using mural quadrant

Answer 28

Brahe

Question 29

_________________, Tycho Brahes assistance, studies Tychos data and used them to formulations the laws of planetary motion

Answer 29

Johannes Kepler

Question 30

_________________ stated that all the planets revolve around the sun in elliptical orbits and that the sun is not in the exact center of orbits

Answer 30

J. Kepler

Question 31

____________ explained why moons orbit planets - gravity

Answer 31

Newton

Question 32

__________ was the first person to see craters and mountains on she moon and sunspots on the sun

Answer 32

Galileo

Question 33

__________ discovered the phases of Venus and four moons orbiting Jupiter

Answer 33

Galileo

Question 34

Astronomers divide the sky into _____________

Answer 34

Constellations

Question 35

The stars that you see in the sky depend on ___________________

Answer 35

Season & position on earth