Brainscape's Knowledge GenomeTM

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


See full index

physical science > ch 29 > Flashcards

ch 29 Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
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
2
Q

What was the symbol for degree taken from?

A

the sun

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

How many degrees does the earth spin in one hour?

A

15

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

What direction does the sun rise?

A

east

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

What direction does the sun set?

A

west

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

A

false

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

How many time zones are there in the world?

A

24

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

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

A

to the east

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

Which direction do you move to subtract hours from the

time?

A

west

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

How many time zones are there in the United States?

A

6

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

What are the names of the time zones?

A

atlantic, pacific mountain central eastern hawaiian time

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

What is a solar day?

A

the movement from noon one day and the noon to the next

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

What is a sidereal day?

A

star from one day to another

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

What are the two main reasons for seasons?

A

revolution and tilt of an axis

17
Q

Which 2 seasons have a solstice?

A

winterb and summer

18
Q

Which month is the summer solstice?

A

june 21

19
Q

Which month is the winter solstice?

A

december 21

20
Q

Which two seasons are equinoxes?

A

spring and fall

21
Q

Which month is the spring equinox?

A

march 21

22
Q

Which month is the fall equinox?

A

september 22

23
Q

When is the longest day of the year?

A

summer solstace

24
Q

When is the shortest day of the year?

A

winter sulstace

25
Q

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

of night?

A

equonaxous

physical science (6 decks)

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