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Form > Science Form 3 > Flashcards

Science Form 3 Flashcards

1
Q

A meteoroid that burns up in Earth’s atmosphere is called a?

A

Meteor

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2
Q

What is a rock from space that strikes the Earth’s surface?

A

Meteorite

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3
Q

Which of the following objects is referred to when a shooting star appears in the sky?

A

Meteor

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4
Q

In what direction do comet’s tail point?

A

Away from the sun

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5
Q

Between which two planets’ orbits does the asteroid belt occur?

A

Mars and Jupiter

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6
Q

What shape are the orbits of most comets?

A

Long, Narrow Elipses

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7
Q

Meteoroids usually come from?

A

Comets or Asteroids

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8
Q

When a meteoroid enters Earth’s atmosphere, it produces a streak of light called a?

A

Meteor

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9
Q

Small pieces of rock that travel through space with no predictable or recognizable path are called?

A

Meteoroids

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10
Q

The biggest asteroid ever known is the?

A

Ceres

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11
Q

Where do meteoroids come from?

A

Asteroids, Comets, Mars or Moon

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12
Q

Interplanetary material that enters the Earth’s atmosphere and collides with the ground rather than burning up is called a?

A

Meteorite

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13
Q

The result when Earth intersects a cometary orbit is a?

A

Meteor shower

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14
Q

Flaming meteoroid

A

Meteor

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15
Q

Large irregular-shaped object, potentially dangerous to Earth

A

Asteroid

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16
Q

Dirty Snowball a few kilometers in diameter with long periods of orbits around the Sun?

A

Comet

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17
Q

A meteorite is a?

A

Small chunk of space rock that hits the Earth

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18
Q

Ceres and Ida

A

Asteroid

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19
Q

How big are asteroids?

A

GREATER than 100m in diameter

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20
Q

What is the most common shape of an asteroid?

A

Irregular

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21
Q

The Orionids

A

Meteor

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22
Q

Hale-Bopp and Shoemaker-Levy 9

A

Comets

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23
Q

They are occasional visitors from space and they usually have eccentric orbits.

A

Comets

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24
Q

What are comets made of?

A

Rock, Ice, and Gas

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25
Q

Where are asteroids found?

A

Asteroid belt

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26
Q

These share an orbit with a large planet or the moon.

A

Trojan asteroids

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27
Q

Most watched because they have the most potential of hitting the Earth.

A

Near Earth Asteroids

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28
Q

How many NEAs are there?

A

7075

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29
Q

How big are NEAs?

A

1 km in diameter

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30
Q

Two types of comets?

A

Long-period and short-period

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31
Q

Do comets emit light?

A

No, they reflect light from the sun

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32
Q

This is the extremely unstable atmosphere in a comet

A

Coma

33
Q

This points away from the sun

A

Tail

34
Q

These are fragments of rocky material

A

Meteoroid

35
Q

This causes meteor showers

A

Comets

36
Q

How do we call small meteoroids?

A

Micrometeoroids, or Cosmic Dust

37
Q

Do Meteoroid emit their own light?

A

No.

38
Q

This is made of solid ice and rock

A

Comets

39
Q

Longest part of a comet

A

Tail

40
Q

This is the name you call a meteor, when a meteor’s glow is greater than a planet’s glow.

A

Fireball

41
Q

What do we call a fireball that has exploded?

A

Bolides

42
Q

This is the most common type of meteoroid

A

Stony in nature, mainly silicates, and some iron and nickel

43
Q

These are a swarm of comets away from the sun

A

Oort cloud

44
Q

When does a comet’s tail get longer?

A

When it gets closer to the sun

45
Q

When does a comet have the longest tail and the largest coma?

A

When it is nearest the sun

46
Q

This is also known as “dirty ice”

A

Nucleus

47
Q

This is the curved tail of a comet

A

Dust tail

48
Q

Global temperature would decrease once the Earth is struck by an asteroid. (T or F)

A

T (the resulting dust cloud would block out the sun)

49
Q

The smallest size of a meteoroid to survive through the mesosphere is?

A

The size of a fist

50
Q

Meteor showers happen when–

A

The earth passes through a trail of comet debris

51
Q

This is the straight tail of a comet

A

Ion tail

52
Q

This is the only part of a comet that lasts once it is far away from the sun

A

Nucleus

53
Q

Arrange the 3 space debris we learned from biggest to smallest

A

Asteroids, Meteoroids, and Comets

54
Q

Where do meteoroids come from?

A

Comets, and Asteroids

55
Q

Comets are made of organic material. (T or F)

A

T

56
Q

Asteroids also collide against each other. (T or F)

A

T

57
Q

Asteroids do not revolve around the planets. (T or F)

A

F

58
Q

Do asteroids emit their own light?

A

Yes

59
Q

What do you call the spaces in between the asteroids?

A

Kirkwood Gap

60
Q

These are also known as minor planets or planetisimals.

A

Asteroids

61
Q

The tail point away when it is at it’s perihelion. (T or F)

A

T

62
Q

These are NEAs that are between Mars and Earth

A

Atens

63
Q

What is the transformation of energy? (Meteor)

A

Kinetic —> Heat —> Light

64
Q

These are considered to be “star-like”

A

Asteroids

65
Q

“Suspended in the air”

A

Asteroids

66
Q

What are meteor showers named after?

A

Constellations and location of their landing

67
Q

These are random meteor showers

A

Meteor Outbursts

68
Q

Asteroids made of Nickel and Iron

A

Metallic Asteroids

69
Q

Carbonaceous Asteroids are made of –

A

Carbon

70
Q

Siliceous/Stony-iron Asteroids are made of–

A

Silicates

71
Q

This is the path of the fireball

A

After-glow

72
Q

What do you call a meteor shower that releases 1 meteor per second?

A

Meteor Storm

73
Q

This is the brief after-glow behind a meteor

A

Wake

74
Q

What are/is in the inner solar system?

A

Asteroids and Meteoroids

75
Q

What are/is in the outer solar system?

A

Comets

76
Q

These asteroids cross the Earth’s orbit

A

Amor

77
Q

Short-period comets come from the–

A

Kuiper Belt

78
Q

Long-period comets come from the–

A

Oort Cloud

79
Q

Meteoroids travel anywhere. (T or F)

A

T

Form (2 decks)

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