Brainscape's Knowledge GenomeTM

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


See full index

Earth Science > Unit 4 - Astronomy Part 1 (Seasons) > Flashcards

Unit 4 - Astronomy Part 1 (Seasons) Flashcards

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

Most objects in the solar system are in _____ motion.

A

regular and predictable

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

The closer a planet is to the sun, the _____ the gravitational attraction.

A

stronger

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

The closer a planet is to the sun, the _____ its velocity as it orbits.

A

faster

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

All planets orbit in elliptical shaped orbits with the sun at one _____.

A

foci

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

Gravity is greatest when the…

A

mass of objects is large and the distance between them is low.

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

As the distance between foci increases, the eccentricity…

A

increases (closer to 1)

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

The apparent diameter of objects gets _____ when they are closer.

A

larger

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

The more circular the orbit is the _____ eccentric it is.

A

less

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

The _____ model has Earth in the center.

A

Geocentric

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

The closer the eccentricity is to _____ the more circular it is.

A

0

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

The closer the eccentricity is to _____ the more eccentric the orbit is.

A

1

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

The _____ model has the sun in the center.

A

heliocentric

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

The shape of earth’s orbit is…

A

extremely round, almost perfect but is slightly elliptical (on ESRT)

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

To people on Earth, the _____ of the planet makes it seem as though the Sun, Moon, and the stars are moving around the Earth once a day.

A

rotation

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

Stars like the Sun appear to move at _____ because the Earth rotates _____.

A

15 degrees per hour

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

The only star that does not appear to move is _____ because it is directly above the Earth’s axis of rotation.

A

Polaris

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

The Earth rotates from west to east over 24 hours at a rate of _____.

A

15 degrees per hour

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

The Earth revolves completely around the Sun in …

A

365 1/4 days at a rate of 1 degree per day.

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

All celestial objects appear to move from _____ in the sky.

A

east to west

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

_____ are evidence that the Earth rotates.

A

Foucault’s pendulum and Coriolis effect

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

Winds and ocean currents are deflected (curved) because of _____.

A

the coriolis effect

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

Evidence that the Earth is revolving around the Sun: _____ and _____

A

changing seasons and constellations.

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

Earth revolves around the Sun with its axis tilted _____ degrees.

A

23.5

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

The Earth’s North Pole is aligned with _____.

A

Polaris

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

_____ are caused by: Earth’s revolution around the Sun, the tilt of Earth’s axis, and parallelism of Earth’s axis.

A

Earth’s seasons

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

The _____ causes unequal heating of Earth’s atmosphere and this produces seasons.

A

tilt of Earth’s axis

27
Q

The Earth is closer to the Sun during New York’s _____ season.

A

winter

28
Q

The Sun appears _____ in our winter.

A

larger (because we are closer to the Sun)

29
Q

_____ - The Earth is closer to the Sun.

A

Perihelion

30
Q

_____ - The Earth is farthest away from the Sun.

A

Aphelion

31
Q

The higher the altitude of the Sun, the _____ the shadow.

A

shorter

32
Q

Shadows are the _____ at sunrise and sunset.

A

longest

33
Q

Shadows are the _____ at noon.

A

shortest

34
Q

Noon shadows are the shortest in NY on _____

A

June 21st

35
Q

Noon shadows are the longest in NY on _____

A

December 21st

36
Q

The altitude of the sun is only measured in …

A

degrees (do not give a compass direction like north or south)

37
Q

Winter Solstice is around _____

A

December 21st

38
Q

On the winter solstice the northern hemisphere is tilted _____ .

A

away from the Sun

39
Q

On the winter solstice the direct rays of the sun hit the _____

A

Tropic of Capricorn 23.5 degrees South

40
Q

On the winter solstice the sunrise is _____, sunset is _____in NYS.

A

sunrise is SE, sunset is SW

41
Q

On the winter solstice the duration of insolation is _____ in NYS.

A

9 hours

42
Q

On the winter solstice there are _____ hours of night at the North Pole and _____ of daylight at the South Pole.

A

24 hours of night at the North Pole and 24 of daylight at the South Pole

43
Q

The dates of the equinoxes are…

A

March 21st (Vernal equinox) September 21st (Autumnal equinox)

44
Q

On the Equinoxes the direct rays of the sun hit _____.

A

the Equator (0 degrees latitude)

45
Q

On the Equinoxes the sunrise is in the _____ and sunset is in the _____ in NYS.

A

sunrise is in the east and sunset is in the west

46
Q

On the Equinoxes there are ___ hours of day and night.

A

12 hours of day and night (everywhere on Earth)

47
Q

The Summer solstice is around _____.

A

June 21st

48
Q

On the Summer Solstice the northern hemisphere is _____

A

tilted toward the sun

49
Q

On the Summer Solstice the direct rays of the sun hit the ______.

A

Tropic of Cancer (23.5 degrees North)

50
Q

On the Summer Solstice sunrise is _____ sunset is _____ in NYS.

A

sunrise is NE sunset is NW

51
Q

The Sun will never be _____ in NYS.

A

directly overhead (90 degrees)

52
Q

The Sun will only be directly above ____ degrees North and _____ degrees South.

A

23.5 degrees North and 23.5 degrees South (Tropic of Cancer and Tropic of Capricorn)

53
Q

The _____ is the point directly over your head (90 degrees)

A

zenith

54
Q

Insolation stands for ______.

A

IN-coming SOLar radiATION (radiation from the Sun)

55
Q

_____ means how long is the sun up over the horizon.

A

Duration

56
Q

The _____ the Sun is in the sky, the more intense it is.

A

higher

57
Q

The duration of insolation is ____ hours on the Equinox.

A

12

58
Q

As the Sun’s angle increases, the Sun’s _____ increases.

A

intensity

59
Q

In NYS an observer must always look ______ to see the noon Sun.

A

South

60
Q

The sun is never at an observer’s ______ in NYS

A

zenith (90 degrees)

61
Q

Black objects absorb ______ than white.

A

more energy

62
Q

The duration of insolation at the Equator is ______ hours.

A

always 12

63
Q

Objects with a rough surface absorb ______ than smooth surfaces.

A

more energy

Earth Science (6 decks)

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