Astronomy Test

Question 0

3 reasons why knowledge of celestial motion was important to our ancestors

Answer 0

• stars helped explorers navigate there ships
• calendars were created using the motion of stars
• stars warned of the annual flooding of the Nile

Question 1

4 ancient civilizations that valued their understanding of the heavens

Answer 1

Indians, Aztecs, mians, Egyptians

Question 2

Definition of astronomy

Definition of astrology

Answer 2

Study of the universe

Study of celestial movements

Question 3

Definition of retrograde motion

Answer 3

The apparent motion of a planet to move in an opposite direction to that of other bodies within its system

Question 4

What is the angle of the tilt of the earth

Answer 4

23.50

Question 5

How long does it take the earth to orbit the sun once

Answer 5

1 year

Question 6

How long does it take the earth to revolve around its axis once

Answer 6

24 hours

Question 7

What are 2 major things that affect daylight

Answer 7

Orbit location

Latitude location

Question 8

What is the name for the day with the longest daylight

Answer 8

Summer, June 21

Question 9

What is the name for the day(s) with 12 hours of daylight

Answer 9

Equinox

Question 10

The angle of an object in the heavens above the horizontal is called its……

Answer 10

Altitude

Question 11

The angle measure away from North on the horizontal plane is called the….

Answer 11

Azimuth

Question 12

Definition of zenith…

Answer 12

Point perfectly above the observer

Question 13

Definition of meridian

Answer 13

Line that stretches n-s, passes through zenith

Question 14

What are the colours of hot stars

Answer 14

Blue

Question 15

What are the colours of cold star

Answer 15

Red

Question 16

What process causes the stars to emit so much light and energy

Answer 16

Nuclear fusion

Question 17

What is a neutron star

Answer 17

Remains of a high mass star

Question 18

What is a black hole

Answer 18

What massive stars become when they die

Question 19

Name the terrestrial planets. Why are they given this name

Answer 19

Mercury, Venus, Mars, earth

Because they resemble earth

Question 20

Name the gas planets. Why are they given this name

Answer 20

Jupiter, Saturn, Uranus, Neptune

Because they are composed of mostly gas

Question 21

Define moon

Answer 21

A celestial body that orbits a planet

Question 22

What’s the name of the Galaxy we live in

Answer 22

Milky Way

Question 23

How many galaxies were believed to exist in the 20th century

Answer 23

One hundred billion

Question 24

What’s a galaxy

Answer 24

A system of millions or billions of stars held by gravitational attraction

Question 25

describe 4 main ways galaxies can be classified

Answer 25

1-spiral
2-barred spiral
3-elliptical
4-irregular

Question 26

When did space age begin, what was launched that day

Answer 26

1957

The first satellite was launched into space

Question 27

When did neil Armstrong land on the moon

Answer 27

July, 1969

Question 28

Which 3 countries have launched manned space flights

Answer 28

Soviet Union, U.S, China

Question 29

Who was the American president during the start of the space race

Answer 29

President John F. Kennedy

Question 30

What are pros and cons of sending out space probes into space

Answer 30

They don’t need food or water or oxygen but they might break down in space

Question 31

Define the following terms astronomical units and light year

Answer 31

The mean distance from the center of the earth to the center of the sun

The distance light travels in a year