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Science > EOS1 exam science 2024 > Flashcards

EOS1 exam science 2024 Flashcards

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1
Q

Terrestrial planets

A

Mercury, Venus, Earth, Mars

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2
Q

Gas Planets

A

Jupiter, Saturn, Uranus and Neptune

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3
Q

The planets with belts

A

Saturn and Uranus

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4
Q

What separates the terrestrial and gas planets

A

asteroid belt

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5
Q

What caused Pluto to be defined as a dwarf planet?

A

The discovery of a rocky object similar in size to Pluto called Eris caused scientists to debate what defined a planet.

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6
Q

what classifies a planet.

A

according to an astronomer in 2006, to be classified as a planet the celestial body must
-be in orbit around a star, while not being a star.
-be large enough that its mass for its own gravity causes it to be spherical shape
-travel in an orbit that does not overlap with objects including planets.

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7
Q

How many years till the sun implodes

A

6.5 billion years it will implode and destroy mercury venus earth before it turns into a white dwarf and its gravitational pull would cease.

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8
Q

The sun was created by…

A

a nebula that collapsed

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9
Q

the 8 planets could fit into the sun..

A

600 times

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10
Q

the suns core is

A

15 million˚c at the core

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11
Q

the sun holds the planets in orbit with

A

its gravitational force

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12
Q

the sun gives humans and plants life on earth through

A

humans and plants life on earth through photosynthesis

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13
Q

what zone is the earth in

A

goldilocks zone

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14
Q

what is solar radiation

A

energy released from the sun that reaches all the planets.

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15
Q

what are all the different types of energy thst areemitted from the sun is

A

electro-magnetic, visible light, infa-red radiation, ultra violet radiation, x-rays and gamma rays.

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16
Q

why do humans need ultra violet radiation

A

for the human body to make vitamin D

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17
Q

Why does the earth need Solar radiation

A

photosynthesis and for the surface and bodies of water to be warm enough for life.

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18
Q

___ units of solar radiation are reflected back into space by the atmosphere

A

25

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19
Q

___ units are absorbed by the ground and ocean

A

46

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20
Q

___ units are absorbed by the atmosphere

A

23

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21
Q

5 units are reflected back into space by the.,.

A

ground and the ocean.

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22
Q

what direction does the earth spins

A

anticlockwise which means sun rises in the east and sets in the west.

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23
Q

the earths axis tilt

A

23.5

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24
Q

one full orbit around the sun takes

A

365.25 days which is the reason for a leap year every 4 years.

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25
Q

one full rotation of the earth takes

A

24 hours

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26
Q

the amount of sunlight a hemisphere receives determines

A

what season it is in

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27
Q

how many moon phases are there?

A

8

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28
Q

what is tidal force?

A

Tidal force is the amount of gravity that can be exerted or applied to an object

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29
Q

What does the moon exert a tidal force on?

A

The moon exerts a tidal force on the water on earth

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30
Q

the further you are from the centre of the earth the less

A

the gravitational force effects you

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31
Q

What does the moons tidal force on the earth create?

A

The moons tidal force on the earth creates 4 tides a day, 2 high (water levels rise) and 2 low (water levels sink)

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32
Q

what is a solar eclipse

A

a solar eclipse is when the moon passes between the earth and sun and they all line up

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33
Q

what is a lunar eclipse

A

a lunar eclipse is when the sun earth and moon all line up and the earth casts a shadow on the moon called the umbra which causes it to turn red

34
Q

what are the 4 types of solar eclipses

A

the four types of solar eclipses are
total, partial, annular and hybrid

35
Q

when was the carbon iferous period

A

250 million

36
Q

brown coal is also called

A

ligmite

37
Q

what is peat

A

peat is the dead things in a swamp that form a layer

38
Q

the circle of light around the moon in a solar eclipse is called

A

the corona

39
Q

why do total solar eclipses only occur when the moon is new

A

because it will not look as though it covers the sun entirely and no corona will occur.

40
Q

porous rocks are called a reservoir rock because they

A

hold oil and natural gases

40
Q

first environmental impact of coal mining

A

releases toxic gases into the air and water which can effect water and air quality

40
Q

second environmental impact of coal mining

A

produces large amount of wast

41
Q

third environmental impact of coal mining

A

to coal mine large scale movements of rock and vegetation need to occur

42
Q

oil is a hydrocarbon, what is a hydrocarbon

A

a hydro carbon is a combination of hydrogen and carbon

43
Q

what determines a living thing

A

a living thing is determined by if it does 7 things- movment, respirate, sensitivity, growth, reproduce, ecretion and nutrition.

44
Q

what is movment

A

the ability to move independently

45
Q

what is respirate

A

converting glucose and oxygen into energy

46
Q

what is sensitivity

A

adapting to environment

47
Q

what is growth

A

the ability to grow

48
Q

what is reproduce

A

it is to pass on your genetics from one generation to another

49
Q

what is excretion

A

the ability to remove waste from your body

50
Q

what is nutrition

A

taking in and eating food

51
Q

what is a prokaryotic

A

bacteria and archea

52
Q

what is a eukaryote

A

animal, plant, fungi

53
Q

what are the 5 rs

A

refuse, reduce, reuse, recycle, rot

54
Q

step 1 of the digestive system

A

1-digestion begins in the mouth, saliva, teeth, tongue help to break down food.

55
Q

step 2 of the digestive system

A

the stomach is a muscle that compresses food and it contains acid that breaks down food as well

56
Q

step 3 of the digestive system

A

nutrients are absorbed in the small intestine

57
Q

step 4 of the digestive system

A

food is prepared for excretion and large intestine removes water

58
Q

step 5 of the digestive system

A

the recturm is where you store your feces

59
Q

step 6 of the digestive system

A

waste is excreted through the anus.

60
Q

what does PMAT stand for

A

Prophase, Metaphase, Anaphase and Telophase.

61
Q

The purpose of mitosis

A

1 cell grows, then divides into 2 genetically identical daughter cells

62
Q

photosynthesis

A

carbon dioxide and water and enery give glucose and oxygen

63
Q

callular respiration

A

oxygen and glucose give water, energy and carbon dioxide.

64
Q

cytoplasm

A

jelly like substance where most chemical reactions occur

65
Q

nucleus

A

contains genetic information and controls the activities of the cell

66
Q

Mitochondria

A

powerhouse of the cell, is where respiration occurs

67
Q

ribosome

A

carries out protein synthesis, turns DNA into energy

68
Q

cell membrane

A

membrane that controls the movement of substances in and out of the cell

69
Q

chloroplast

A

only in animal, creates photosynthesis

70
Q

Vacuole

A

stores water

71
Q

cell wall

A

strengthens the cell and provides support

72
Q

the direction of respiratory system

A

nasal or mouth cavity, pharynx, larynx; trachea, lungs, bronchi, bronchioles, alveoli and diaphragm

73
Q

diffusion definition

A

the movement of materials from a high concentraion to a low concentration

74
Q

how does temp affect diffusion

A

hotter it is the faster

75
Q

how does distance effect diffusion

A

the further the distance the slower the diffusion

76
Q

how does the concentration effect the diffusion

A

the higher the concentration the faster the diffusion

77
Q

equilibrium is

A

fully diffused

78
Q

does diffusion require ATP

A

no

79
Q

why is polyester not renewable resource

A

because it is made from potroluem which is a crude oil

Science (7 decks)

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