Chapter 19 - Astronomy Study Guide

Question 1

What is the term for the earth spinning on its axis?

Answer 1

earth’s rotation

Question 2

What is the term for the earth moving around the sun?

Answer 2

earth’s revolution

Question 3

How long does it take the Earth to complete rotation?

Answer 3

24 hours or one day

Question 4

How long does it take the earth to rotate during one revolution?

Answer 4

365 1/4 times

Question 5

Why does the earth have daytime and nighttime?

Answer 5

Earth’s rotation; the sun only lights half the earth at a time

Question 6

What is the term for the path Earth takes as it revolves around the sun?

Answer 6

Earth’s orbit

Question 7

How long is Earth’s orbit?

Answer 7

365 1/4 days or 1 year

Question 8

Why does the Earth have seasons?

Answer 8

Earth is tilted on its axis as it revolves around the sun.

Question 9

Which hemisphere do we live in?

Answer 9

northern hemisphere?

Question 10

How can we tell which season the Earth is in?

Answer 10

By viewing the earth’s tilt.

Question 11

If the northern hemisphere is tilted toward the sun which season will it be experiencing?

Answer 11

summer

Question 12

If the northern hemisphere is experiencing summer which season will the southern hemisphere be experiencing?

Answer 12

Winter (the hemispheres are always opposite)

Question 13

If neither hemisphere is tilted toward the sun which season(s) will they be experiencing?

Answer 13

Spring & Fall

Question 14

If the southern hemisphere is experiencing fall which season will the northern hemisphere be experiencing?

Answer 14

Spring

Question 15

Which day of the year has the most amount of daylight?

Answer 15

Summer solstice

Question 16

Which day of the year has the least amount of daylight?

Answer 16

Winter solstice

Question 17

Which days of the year have an equal amount of daylight and night?

Answer 17

equinoxes

Question 18

During which months does the summer solstice occur?

Answer 18

June

Question 19

During which month does the winter solstice occur?

Answer 19

December

Question 20

During which month does the vernal equinox occur?

Answer 20

March

Question 21

During which month does the autumnal equinox occur?

Answer 21

September

Question 22

Where does the moon get its light?

Answer 22

It reflects the light from the sun.

Question 23

How much of the moon is always lit by the sun?

Answer 23

Half

Question 24

Why does the moon appear to change shape?

Answer 24

The moon revolves around the Earth and we can only see part of the lit side of the moon

Question 25

What are the two types of eclipses?

Answer 25

Solar eclipse and lunar eclipse

Question 26

Which eclipse occurs when the moon comes between the Earth and the Sun?

Answer 26

Solar eclipse

Question 27

Which phase of the moon occurs during a solar eclipse?

Answer 27

New Moon

Question 28

Which eclipse occurs when the moon moves into the Earth’s shadow?

Answer 28

Lunar eclipse

Question 29

Which phase of the moon occurs during a lunar eclipse?

Answer 29

Full mooon