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

A round, three-dimensional object, the surface of which is the same distance from the center in all directions.

A

Sphere

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

An elongated, closed curved with two foci.

A

Ellipse

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

What were some ancient observation that prove Earth is a sphere?

A

Objects fall toward the surface, the shadow of the Earth on the moon, and people see different stars

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

What are two factors that effect gravitational pull?

A

Mass and distance

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

Which diameter of Earth is longer?

A

Equator

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

What does the magnetic field protect Earth from?

A

Harmful Radiation

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

Which magnetic pole is located in the northern hemisphere?

A

South magnetic pole

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

Which magnetic pole is located in the Southern hemisphere?

A

North magnetic pole

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

At what degrees is Earths axis titled?

A

11.7 degrees

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

Can magnetic poles flip-flop?

A

Yes

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

What is the large scale movements called when they flip?

A

Magnet reversals

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

How often do magnetic reversals happen?

A

every 200,000 years

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

When was last magnetic reversal?

A

780,000 years ago

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

Within Earth magnetic field, What part deflects harmful radiation?

A

Magnetosphere

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

What are the scientific names of the southern lights and northern lights?

A 
Aurora australis (south) 
Aurora borealis (north
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

How are the Aurora’s created?

A

Electrically- charged partials from the sun collide with the atoms in the atmosphere and emit light

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Which month is Earth closes to the sun?

A

January

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Which month is Earth farthest to the sun?

A

July

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

An area 15 degrees wide in which the time is the same

A

time zone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

The spinning of Earth on its axis, an imaginary line drawn from Earths North and South pole

A

Rotation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

The motion of Earth is an elliptical orbit around the sun

A

Revolution

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Defined as the plane of Earth’s orbit around the sun

A

eliptic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

This occurs when Earth’s rotational axis is tilted directly towards or away from the sun

A

solstice

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Where Earth’s rotational axis is perpendicular to a line drawn from the center of Earth to the center of the sun

A

Equinox

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
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
26
Q

What was the symbol for degree taken from?

A

The Babylonians symbol for the sun

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
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
28
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
29
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
30
Q

What direction does the Sun rise?

A

The east

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

What direction does the Sun set?

A

the west

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
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
33
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
34
Q

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

A

East

35
Q

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

A

West

36
Q

How many time zones are there in the United States?

A

six

37
Q

What are the name of the time zones in the US?

A

Alaska/Atlantic time, Pacific Time, Mountain Time, Central Time, Eastern Time, Hawaii/ Hawaiian Time

38
Q

What is a solar day?

A

The motion of the Sun from noon one day to the sun at noon the next day

39
Q

What is a sidereal day?

A

Looking at a certain star and looking at it again the next day

40
Q

What are the two main reasons for seasons?

A

Revolution and the tilt of the axis

41
Q

Which 2 seasons have a solstice?

A

Summer and Winter

42
Q

Which month is the summer solstice?

A

June

43
Q

What month is the winter solstice?

A

December

44
Q

Which two seasons are the equinoxes?

A

Spring and fall

45
Q

Which month is the spring equinox?

A

March

46
Q

Which month is the fall equinox?

A

September

47
Q

When is the longest day of the year?

A

Summer solstice June 21

48
Q

When is the shortest day of the year?

A

Winter solstice December 21

49
Q

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

A

The Spring and Fall Equinox March 21 or 22 September 22 or 23

50
Q

A rise or fall in the ocean surface

A

Tide

51
Q

Reflects the change of appearance of the Moon as seen from Earth

A

Moon Phase

52
Q

Occurs when the Moon moves directly between the Sun and Earth and cast a shadow on Earth.

A

Solar Eclipse

53
Q

Occurs when Earth passes between the Sun and the Moon and cast a shadow on the Moon

A

Lunar Eclipse

54
Q

Dark-colored, flat, lava-filled regions on the Moon’s surface

A

Maria

55
Q

A layer of dusty lunar material produced by collisions between asteroids and comets and the Moon.

A

Regoliath

56
Q

How many days does it for the moon to revolve around the Earth?

A

27.3 days

57
Q

A complete lunar phase cycle takes 29.5 days, what is this called?

A

synodic month

58
Q

Do we ever see the back side of the moon?

A

no

59
Q

What causes a tide to rise or fall?

A

gravitational pull of the sun and the moon

60
Q

What is the rise of sea level called?

A

high tide

61
Q

After the sea level rises how many hours does it take for the sea level drop?

A

about 6 hours

62
Q

Which is farther from Earth, the sun or the moon?

A

the sun

63
Q

Does the moon or the sun cause a greater effect on Earth’s tides?

A

the moon

64
Q

How are the sun, the Earth, and the moon aligned for a spring tide?

A

The sun, earth, and the moon are in a straight line

65
Q

How are the sun, the Earth, and the moon aligned for a neap tide?

A

an L or 90 degree angle

66
Q

What does the phase of the moon you see depend on?

A

the position of the moon, Earth and the sun relative to one another

67
Q

When does a new moon occur?

A

When the moon is between the Earth and the Sun

68
Q

How many phases of the moon are there?

A

Eight

69
Q

What is the definition of a waxing phase?

A

the illuminated portion that we see appears larger each night

70
Q

What is the definition of a waning phase?

A

The illumination portion that we see begins to appear smaller

71
Q

What are the moons phases names?

A

New moon, Waxing crescent, 1st quarter, Waxing gibbous, Full moon, Waning gibbous, 3rd quarter, and waning crescent

72
Q

Where is the word month derived from?

A

Derived from the same root as Moon

73
Q

How is the Earth, moon, and sun aligned during a solar eclipse?

A

The moon is between the sun and Earth

74
Q

What is an umbra?

A

the dark shadow hitting Earth during a total solar eclipse

75
Q

What is the penumbra?

A

A parcel eclipse

76
Q

How is the earth, moon and sun aligned during a lunar eclipse?

A

The Earth is between the Sun and the moon

77
Q

How are the depressions on the moon formed?

A

Meteorites, asteroids, and comets

78
Q

Are there mountains on the moon?

A

Yes

79
Q

Which side of the moon is thicker?

A

The dark side, the side Earth doesn’t see

80
Q

Is the mantle of the moon a solid or a liquid?

A

solid

81
Q

What did the Clementine spacecraft do?

A

confirmed the thickness of the crust on the moon, and the mineral context of rocks

82
Q

What did the Lunar Prospector do?

A

Took surface photos of the moon, confirmed the moon has a small iron rich core, and collected evidence that shows that water- ice on the moon

83
Q

What is the Giant Impact Theory?

A

A Mars size object collided with Earth, sending debris into obit, they then condensed, then the moon was formed

Physical Science (8 decks)

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