Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Anna > Astronomy Exam > Flashcards

Astronomy Exam Flashcards

(57 cards)

Start Studying
1
Q

What is orbital radius?

A

the average distance between an object in the solar system and the sun

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

Gravitational Force

A

the force of attraction between all masses (planets, etc) in the universe

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

What did Claudius Ptolemy believe?

A

That the sun and planets revolved around Earth

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

astronomy

A

the scientific study of what is beyond earth

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

Solstice

A

astronomical event, happpens twice a year. when the North Hemisphere tilts toward the Sun/away from the Sun.

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

Equinox-when are they?

A

when day time and night time have equal hours

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

Lunar Cycle

A

all phases of the moon

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

New Moon

A

when the moon is not visible

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

Waxes

A

when the moon is at the first quarter phase.

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

Wanes

A

the moons face decreases in size

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

Solar Eclipse

A

when the moon is in between the earth and the sun

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

Lunar Eclipse

A

when the earth is in between the moon and the sun

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

Tides

A

the rising and falling of the ocean surface caused by gravitational pull.

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

celestial object

A

any object that exists in space

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

universe

A

everything that exists, including all energy, matter, and space.

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

Constellation

A

a group of stars observed from earth

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

Star Map

A

a map of the night sky used to show the positions of stars at given times and dates.

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

Planisphere

A

a type of star map used for locating stars, galaxies, constellations as well as the postions of starts at given times and dates.

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

Celestial Sphere

A

an imaginary sphere which all celestial objects are projected.

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

Celestial Equator

A

an imaginary extension of earths equator, projected into space.

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

Planetarium

A

a place to study planets, stars, galaxies etc.

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

star

A

a massive collection of gases, held together by its own gravity and emits huge amounts of energy.

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

luminous

Study These Flashcards
A

producing and giving off light; shining

24
Q

sun

Study These Flashcards
A

the sun is a star- an enormous ball of hot, glowing gases.

25
scientific notation
a number between 1 and 9 multiplied by the power of 10
26
Planet
a large, round celestial object that travels around a star.
27
solar system
the sun and all the objects that travel around it.
28
satellite
a celestial object that travels around a planet or dwarf planet.
29
orbit
the closed path of a celestial object or satellite as it travels around another celestial object.
30
moon
the moon is a type of satellite, a celestial object traveling around a planet/dwarf planet. the moon reflects the sun's light.
31
galaxy
a huge, rotating collection of gas, dust, and biliond of stars, planets, and other celestial objects.
32
milky way
is are galaxy that contains the sun, planets and stars.
33
electromagnetic radiation
energy emitted from matter, consisting of electromagnetic waves that ravel at the speed of light.
34
electromagnetic spectrum
the range of wave lengths of electromagnetic radiation, extending from radio waves to gamma rays, and includes visible light.
35
corona
the corona is one part of two layers, the corona being the thin outer layer of the solar (sun's) atmosphere.
36
sunspots
dark spots appearing on the sun's surface that are cooler than the area surrounding them.
37
Galileo Galilei
he was the first to believe that the earth and all planets revolved around the sun.
38
Aurora Borealis
a display of shifting colourss in the northern sky caused by solar particals colliding with matter in Earth's upper atmosphere.
39
Aurora Australis
similar to Aurora borealis except in the south pole.
40
Astronomical unit
approximately 150 million kilometers: the average distance from earth to the sun.
41
dwarf planet
a celestial object that orbits the sun and has a spherical shape but does not dominate its orbit.
42
asteroid
celestial objects of all sizes in the solar system composed of rock and metal.
43
meteoroid
a piece of metal or rock in the solar system that is smaller than an asteroid.
44
meteor shower
A meteor shower is a celestial event where lots of meteors are observed to glow/radiate. having come from one point in the night sky. meteor showers are caused by streams of cosmic debris entering Earth's atmosphere at extremely high speeds.
45
comet
a chunk of ice and dust that ravels in a very long orbit around the sun.
46
coma
the gases and dust that form a gaseous cloud around the nucleus of a comet.
47
light pollution
when too many lights sine upwards making it difficult to see stars.
48
azimuth
the horizontal angular distance from north measured east ward.
49
altitude
the angular height a celestial object appears to be above the horizon, measured vertically
50
artificial satellites
man made machines sent into earths orbit which contributes to many things such as weather and tv.
51
sputnik 1
an artificial satellite sent to space by the soviet union. 1957. mission was to orbit earth.
52
Alouette 1
sent into space five years after sputnik with mission to orbit earth.
53
RADARSAT
satellites in polar orbits to keep an eye on natural and human made events.
54
GPS
a group of satellites that work together to determine the positions of given objects on the earths surface.
55
kuiper belt
where a majority of asteriods can be found. this belt comes after our universe.
56
Eris
a dwarf planet in the kuiper belt
57
Oort cloud
third belt and the biggest belt. long orbiting comets are most commonly found their.

Anna (8 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions