Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

physical science > 29.2 > Flashcards

29.2 Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
Q

time zone

A

is an area 15 degrees wide in time is the same

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

rotation

A

the spinning of earths axis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

revolution

A

is the motion of earth in an elliptical orbit around the sun

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

eliptic

A

is defined as the plane of earths annual revolution

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

solstice

A

occurs when earth’s rational axis is tilted directly toward the sun or away fro the sun

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

equinox

A

earth’s rotational axis is perpendicular toward a line drawn from the center of earth to the center of the sun

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Who devised a method of timekeeping around 3000 B.C.?

A

Babylonians

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What was the symbol for degree taken from?

A

The Babylonian symbol for the sun

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

How many degrees does the earth spin in one day?

A

360 degrees

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

How many hours does it take the earth to make one full rotation?

A

24 hours

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

How many degrees does the earth spin in one hour?

A

15 degrees

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What direction does the sun rise?

A

East

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What direction does the sun set?

A

West

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

True or false. All time zones are the exact same size?

A

False, they are modified to fit around cities, states, and country borders, and other key sites.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

How many time zones are there in the world?

A

24 time zones

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Which direction do you move to add hours to the time?

A

East

17
Q

Which direction do you move to subtract hours from the time?

A

west

18
Q

Which direction do you move to subtract hours from the time?

A

6 times zones

19
Q

What are the names of the time zones?

A 
Mountain time zone
Eastern time zone
Pacific time zone
Alaskan time zone
Central time zone
Hawaiian time zone
20
Q

What is a solar day?

A

The earth’s rotation from the sun in the sky from noon one day to noon the next day.

21
Q

What is a sidereal day?

A

When a certain star rises above the horizon until that same star rises again

22
Q

What are the two main reasons for seasons?

A

The axis tilt and how close earth is to the sun

23
Q

Which 2 seasons have a solstice?

A

Summer and Winter

24
Q

Which month is the summer solstice?

A

June

25
Q

Which month is the winter solstice?

A

december

26
Q

Which two seasons are equinoxes?

A

spring and fall

27
Q

Which month is the spring equinox?

A

march

28
Q

Which month is the fall equinox?

A

september

29
Q

Which month is the fall equinox?

A

during the summer solstice

30
Q

When is the shortest day of the year?

A

during the winter solstice

31
Q

When are the days almost 12 hours of day and 12 hours of night?

A

during the spring equinox and during the fall equinox

physical science (16 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions