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Science Flashcards

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1
Q

What is our solar system

A

A system of a sun and the objects that move around it call planet

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2
Q

How many planets are there?

A

8 , sun, mercury,Venus, earth, mars Jupiter,Saturn, Uranus,Neptune

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3
Q

What is the universe made of

A

Dark matter and dark energy and black holes

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4
Q

Where did the universe come from

A

Our universe began with an explosion of space itself the big bang

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5
Q

How big is the universe

A

Approximately 93 billion light years in diameter

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6
Q

The definition of universal

A

The totality of existence

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7
Q

The universe

A

Everything that exists stars,planets,galaxies,empty space it contains 100-400 billion stars

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8
Q

What space

A

The empty regions between objects and stuff in the universe

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9
Q

What galaxy

A

A huge collection of gas and dust and billions of stars and their solar system

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10
Q

How long dose it take for the galaxy and the Milky Way to rotate

A

It take 250 million years to rotate

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11
Q

What is a andromeda.

A

Andromeda is our neatest neighbouring galaxy it is 2.537 million light years year away

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12
Q

What are stars

A

A luminous ball of gas mostly hydrogen and helium held together by its own gravity giving out heat and light and radiation

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13
Q

What is sun called

A

Our sun is a small star called sol

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14
Q

What other stars types are there

A

White dwarf, supergiant, red dwarf, black hole

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15
Q

The life of a star what is it

A

Stars are born when a nebula is pulled together to that it ignites

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16
Q

Mean of hydrogen

A

It is the fuel new atomic nucleus are formed

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17
Q

When a new stars is stabled for a billion year

A

It is called yellow dwarf bigger hotter stars have shorter lives

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18
Q

When it runs out of fuel the star

A

Cools and expands become a red giant

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19
Q

Inner core collapses and forms

A

A white dwarf

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20
Q

The white dwarf eventually run out of fuel and become

A

A black dwarf the universe isn’t old enough for this to happen yet

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21
Q

What are constellations

A

Group of stars which we have grouped like join the dots

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22
Q

An object orbiting a star with enough gravity to make itself sphere

A

This means it must be a minimum size it must dominate it environment

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23
Q

How many moons dose mercury have

A

It has no moons

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24
Q

How many moons dose Venus have

A

It has no moons

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25
Q

How many moons dose earth have

A

It has one moons

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26
Q

How many moons have mars

A

Mar has 2 mooons

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27
Q

How many moons dose Jupiter have

A

It has 95 moons

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28
Q

How many moons has Saturn

A

It has 146

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29
Q

How many moons has Uranus

A

It has 27 moons

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30
Q

Neptune has

A

16 moons

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31
Q

Who has the one big moon

A

Pluto has one big moon and 4 other

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32
Q

Pluto is smaller than

A

Our moon luna

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33
Q

Charon is quite big in comparison to

A

Pluto

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34
Q

Charon affects the movement of

A

Pluto in a big way see it wobble

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35
Q

Pluto is not dominating its

A

Evironment

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36
Q

What is asteroids

A

Giants rocks that orbit the sun not planets millions of them in the asteroid belt between mars and Jupiter

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37
Q

Ceres and vest are the

A

Largest asteroid in our solar system’s

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38
Q

Eros anther one in

A

The Kuiper Belt

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39
Q

What are comets

A

Mixture of frozen gas and ice dust and rocks orbit the sun on large elliptical orbits Halley comet appear every 75 years

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40
Q

Comets have a

A

Tail as they approach the sun the tail is perpendicular sun

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41
Q

What are meteors and meteors

A

Rocks the burn up in the earths atmosphere making a shooting stars trail behind them many land on earth as rocks called. Meteors

42
Q

You can find micrometer in dust in your drainpipe

A
43
Q

What are black holes

A

When giants stars die they collapse into them selves because of their own gravity this point of extreme density and gravity is a black hole

44
Q

Not even light can

A

Escape the hug gravity the centrel of most galaxies is a supermassive ball hole

45
Q

The Big Bang theory

A

The Big Bang theory is how physicists explain in the origin of the universe

46
Q

The Big Bang theory began

A

14 billion years ago all of space and matter and energy were together in a single tiny extremely hot point

47
Q

The Big Bang theory

A

This point exploded and created all matter and space and energy the universe expanded and cooled and is still experiencing all matter and energy in space has developed from that point

48
Q

The earth is

A

Life has existed for 4 billion years years
5 billion years old the. Dinosaurs existed 200 million years ago years ago-64 million years ago humans have existed for less then 250,000 years the current version or human that we are might only be less than 60,000 years old

49
Q

What cause nigth and day

A

Are due to the earth rotating on its axis

50
Q

Why is it nigth time in Australia when it is daytime inn Ireland

A

Cause Australia is on the other side of Ireland

51
Q

What cause the season

A

The earth spin axis is tilted with respect to its orbit

52
Q

Are we nearer to the sun in the summer or further away

A

Its nearest stellar neighbour is the alpha centaur triple star system

53
Q

Where dose the light form the moon come from

A

The moon form during a collision between the earth and another small planet about the size of the planet mars

54
Q

What are the phases of the moon and why do they occur

A

Caused by the changing position of the moon earth and sun

55
Q

What are eclipse is there more than one type

A

Cause by the changing position of the moon and earth and the sun yes

56
Q

How old is the earth

A

4.543 billion years

57
Q

How big is the moon

A

Me as diameter 3,475km earth diameter 2,742 km what is the ratio of these number is the for a moon

58
Q

How dense is the moon

A

3.34cm3 earth density 5.514 gcm3 earth weight 81 times more than the moon what does the answer suggest about what the moon is made of

59
Q

Earth orbit around the sun our models is tired at an angle of

A

23° for vertical because the earth rotates at this angle

60
Q

Why dose the wrath rotates at this angle why

A

When it was very young as a planted about 4.5 BYA the solar system was a messy place full of wandering debris

61
Q

The earth was Lilly hit by a large object called a

A

Pronto planet

62
Q

This cause the axis to tilt and cause a mass ejection of matter which eventually gathered to from the moon

A
63
Q

What is analemma

A

It is if the sun at mid day throughout the years the orbits of the earth tilt the axis

64
Q

What is a eclipses

A

Occur when one planetary body blocks the view of another one

65
Q

What is a eclipses

A

Occur when one planetary body blocks the view of another one

66
Q

What do the solar eclipses

A

When the moon passes between the sun and the earth and blocks the view of the moon

67
Q

What are lunar eclipse

A

When the earth passes between the sun and the moon and blocks the sun light from the moon

68
Q

Solar eclipse types

A

Umbra where there is total shadowing total eclipse penumbra where there is parties shadowing partial eclipse

69
Q

Partial solar eclipse

A

When the sun is partly covered by the moon

70
Q

Total solar eclipse

A

When the sun is fully covered by the sun

71
Q

Annular solar eclipse

A

A total eclipse when the moon is further away from the earth so dose not fully cover the sun

72
Q

Lunar eclipse

A

A penumbra lunar eclipse when the moon enters the penumbra only

73
Q

All partial lunar eclipse

A

When some of the moon enter the umbra

74
Q

A total lunar eclipse

A

When all of the. Moon enters the umbra

75
Q

Why don’t eclipses happen every month

A

The moon wobbles around the earth it’s orbit is at an angle of about 5 degrees above or below the equator

76
Q

Surface of the moon

A

Moon has no atmosphere and no tectonic movement

77
Q

Sea these are ancient lava plains from when the moon still has a molten core

A
78
Q

Plate tectonic

A

Is the movement of the earth crust

79
Q

Seismology meaning

A

Is the study of the earth quakes and volcanoes are cause by plate tectonics

80
Q

Seismograph meaning

A

Used to measure this movement

81
Q

The richter scale meaning

A

Is a logarithmic scale used to measure the magnitude of an earthquake

82
Q

Ingredients rock meaning

A

When lava or magma cool it forms this rock

83
Q

Sedimentary rock meaning

A

Formed by layers rock particles plans and animals deposited over millions of of years

84
Q

Metamorphic rock

A

When igneous or sedimentary rocks are changed by huge heat

85
Q

Acids have a

A

Sour taste

86
Q

Acids turn

A

Blue litmus red

87
Q

Acids have a

A

Ph below 7

88
Q

Everyday acids

A

Lemons and oranges

89
Q

Lad acids

A

Hhdrochloric acids also stomach acids

90
Q

Bases are the

A

Opposite to acids

91
Q

Bases turn

A

Red litmus blue

92
Q

An alkali is a

A

Bases which is soluble in water

93
Q

Every day base

A

Toothpaste and calcium bread soda and bleach

94
Q

Lab bases

A

Sodium hydroxide and calcium hydroxide and lime water

95
Q

Bases and acid can

A

Chang colour and litmus and universal indicator

96
Q

The ph scale

A

Is use to measure the strength of acids and bases

97
Q

Bases is above 7 and acids have a ph of below 7

A
98
Q

The oh scale is

A

Logarithmic it increases by factor of 10 ph 6 in 10 time more acidic than ph 7

99
Q

Neutralisation

A

When an acid is mixed with a base they cancel each other out and form a salt and water acid +base -salt +water

100
Q

Acid + base

A

Hhdrochloric acid + sodium hydroxide +water

101
Q

Acid + carbonate

A

When the base is a carbonate like linestone

History Reformation (6 decks)

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