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OCR Core Science Foundation Flashcards | StudBud
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OCR Core Science Foundation
OCR Core Science Foundation
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A game required to glide through those GCSE exams like a chicken on rollerblades...!
Flashcards
100 cards
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Practice quiz
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Questions
100
Answers
1
Which of these statements about nuclear radiation is true?
alpha particle is made of electrons
Gamma radiation is the most penetrating
Beta radiation can be used in smoke alarms
Beta radiation can be stopped by a few sheets of paper
2
Which of these animals never lay eggs?
Fish
Birds
Mammals
Reptiles
3
Which of these is true about infra red radiation?
Black, matt surfaces are poor emitters
White, shiny surfaces are good emitters
Black, matt surfaces are good emitters
4
CFCs, which are used in aerosols and fridges, directly cause...?
Holes in the ozone layer
Green house effect
Acid Rain
5
Which of these statements about polymers is false?
Nylon is never used for clothing
Polystyrene foam is used for insulating homes
Polyethene is used for plastic bags
Gore-Tex is often used for hiking boots
6
Which of these is a chemical barrier against infection?
Skin
Nails
Eyelashes
HCL in your stomach
7
Which of these is not a polymer?
Polyester
Gore-Tex
Nylon
Cotton
8
Where is testosterone made in men?
Testes
Pituitary Gland
Pancreas
Ovary
9
Which of these is a long term effect of drinking too much alcohol?
Being drunk
Bad balance
Poor vision
Liver damage
10
The outer layer of the Earth is called the?
Crust
Core
Mantle
Magma
11
Vaccinations do NOT involve injecting a person with...
An active pathogen to give them a disease
A treated, harmless pathogen to trigger a mild reaction
A dead pathogen to trigger a mild reaction
12
Which of these metals is not an alloy?
Brass
Silver
Bronze
Steel
13
Which of these do we use to produce medical images of bones?
Radio
X rays
Infrared
Ultra Violet
14
Which kind of pathogen doesn't have a nucleus?
Bacteria
Protozoa
Virus
Fungi
15
How do you calculate the percentage efficiency in a Sankey diagram?
Useful output ÷ Total input x 100
Total output ÷ Total input x 100
Total output ÷ Useful input x 100
Useful output ÷ Useful input x 100
16
When a pathogen enters your body, what does NOT happen?
White Blood Cells produce antibodies
You can get ill
White blood cells engulf and digest the pathogens
The pathogen releases antibodies
17
Which hormone in the menstrual cycle is stimulated by the growth of the egg?
Progesterone
LH
Oestrogen
FSH
18
When a liquid heats up, before changing state...
The temperature does not increase
The particles become more spread out
The particles gain more kinetic energy
19
What kind of pathogen is carried by vectors e.g. mosquitos?
Bacteria
Fungi
Protozoa
Virus
20
Which hormone inhibits LH and causes the uterus wall to break when its level drops?
Oestrogen
FSH
Testosterone
Progesterone
21
A convection current is created when?
A solid vibrates
Hot air moves downwards because it's denser than cold air
Particles with energy move from a hot place to a cool place
Infrared radiation is given out
22
Which of these is a short term effect of smoking cigarettes?
Addiction to nicotine
Bad breathe
Damaging the cilia which can't get rid of mucus properly
Lung cancer
23
What is specific heat capacity?
Energy needed to change temp of 1 g of a substance by 1°C
Different between internal and external temperature
Energy needed to change temp of 1 kg of a substance by 1°C
Energy needed to change temp of 1 kg of a substance by 10°C
24
Which of these metals is used for electrical wiring?
Steel
Titanium
Copper
Silver
25
Fractional distillation is used to:
purify copper
find out which dyes are in a solution
separate hydrocarbons
separate water and salt
26
Which hormone in the menstrual cycle stimulates the release of an egg?
Oestrogen
LH
FSH
Progesterone
27
Emulsifiers have two parts where...
Both repel water
One repels water and the other repels oil
One repels water and the other loves oil
One repels oil and the other loves water
28
Which of these kingdoms use light energy to make food?
Protoctists
Animals
Prokaryotes
Plants
29
Which temperature is required for the Haber Process?
450
350
400
300
30
Which statement is not true about nerve impulses?
Impulse is carried from a motor neurone to a relay neurone
Nerve impulses are electrical signals
Stimulus is detected by a receptor
Impulse is carried from a sensory neurone to a relay neurone
31
Why do clouds of dust and gas come together to form protostars?
Explosion
Magnetism
Gravity
Heat
32
Bromine water turns from orange to colourless in an...?
Alkane solution
Alkene solution
33
Which of these statements about drugs isn't true?
Alcohol is a stimulant
LSD is a hallucinogen
Nicotine is a stimulant
Heroin is a painkiller
34
Which of these statements isn't true about Sir William Herschel?
He discovered infra-red light
He came up with the theory of evolution
He used prisms to break up visible light
He was British
35
How is a cactus adapted to the desert?
It has large leaves
It has deep roots
It stores water in its stem
36
Which of these statements about the next steps of a small main sequence star isn't true?
A white dwarf forms the hot dense core
The outer layer is ejected
The white dwarf then becomes a black hole
A planetary nebula is the outer layer of dust and gas
37
Sulphur Dioxide directly causes...?
Green house effect
Acid Rain
Holes in the ozone layer
38
What is homeostasis ?
Keeping the conditions in your body constant
Reflex reactions
Keeping the body temperature warm
Reducing the sugar levels
39
Which of these drugs can be sold by a pharmacist in the UK?
Heroin
LSD
Performance enhancers
Ecstasy
40
Passive immunity happens when... ?
Your body makes its own antibodies
Antibodies pass from mother to baby through breast milk
41
Which of these gases is the biggest cause of the green house effect?
Sulphur Dioxide
Hydrogen
Carbon Dioxide
Oxygen
42
Which of these statements about waves isn't true?
Reflection lets us see things
Diffraction is the spreading out of waves
Refraction changes the speed of a wave and its direction
Refraction changes the speed of a wave but not the direction
43
Which of these electromagnetic waves is used for optical fibre communication?
Infrared Light
Radio Waves
Micro Waves
44
Which of these statements isn't true about the fractional distillation of crude oil?
The hydrocarbons rise up the fractional column
Crude oil is heated to 350 degrees and vaporizes
Hydrocarbons with low boiling points cool at the bottom
Small hydrocarbons leave at the top as gases
45
Which of these two are molten rock under the earth's surface?
Lava
Magma
46
Which of these statements about pathogens isn't true?
Tuberculosis is caused by a fungi
AIDS is caused by a virus called HIV
A virus cannot be treated with antibiotics
Malaria is carried in a mosquito's blood
47
What is the definition of a species?
A group of organisms which live in the same type of habitat
A group of organisms which can breed
A group of organisms with similar characteristics
A group of organisms which look alike
48
Which of these won't help insulate your home?
Thick curtains
Double glazing
Cavity Wall
Having the radiator on
49
Which two metals are a liquid at room temperature?
Mercury and Titanium
Mercury and Solder
Mercury and Gold
Mercury and Amalgram
50
Athlete's Foot is caused by a ...?
Bacteria
Fungus
Virus
Protozoa
51
Which of these metals is more reactive than Magnesium?
Iron
Potassium
Lead
Aluminium
52
Genetic variation happens because of...?
Fertilisation
Mutations
Formation of gametes
All of the above
53
Which of these statements about gamma radiation isn't true?
It is used to sterilise medical equipment
It has the highest energy out of the electromagnetic waves
It destroys cells
It has the longest wavelength
54
Which two metals are used for musical instruments?
Silver and Steel
Bronze and Silver
Brass and Steel
Brass and Bronze
55
What is C4H10 the formula for?
Butene
Propane
Propene
Butane
56
What is the efficiency of the LED light?
80%
20%
25%
75%
57
What is our air mostly made up of?
Carbon Dioxide
Nitrogen
Oxygen
Hydrogen
58
Which two gases does the Haber Process use?
Hydrogen and Carbon Dioxide
Hydrogen and Helium
Hydrogen and Nitrogen
Hydrogen and Oxygen
59
Which of these is incorrect about heat energy and transfer?
Conduction happens in solids
Radiation can happen in a vacuum
Convection happens in fluids
Heat energy can be created
60
A small supernova will become?
Neutron Star
Planetary Nebula
White Dwarf
Black Hole
61
Which of these is not needed for refraction?
A wave hits a boundary between two substances
The two substances have different densities
The wave is travelling at an angle
The two substances have a different state eg. gas and liquid
62
Which of these metals is less reactive than Iron?
Zinc
Magnesium
Tin
Aluminium
63
What conditions are not required for the Haber Process?
High temperature
Classical music
High pressure
Iron Catalyst
64
Which of these terms is correctly defined?
Soluble means a substance won't dissolve
A solute is the substance being dissolved
A solute is the liquid something is dissolved into
A solvent is a mixture of two solutes
65
Which of these statements isn't true about meteors?
They are made of chunks of rock
When they enter the earth's atmosphere they give out light
They caused the extinction of the dinosaurs
They orbit the earth
66
Which of these statements about the eye is not correct?
The pupil focuses light onto the retina
The blind spot is where the optic nerve attaches to the eye
The cornea refracts light
The iris controls light entering the pupil
67
Which of these statements about hormones is not true?
Your body reacts more slowly to hormones than nerve impulses
Hormones target and affect particular organs
Hormones travel in the blood
Hormones do not travel all over the body
68
What causes short-sightedness?
The retina is not light sensitive
There is no focus on near objects
The eye ball is too long
The eye ball is too short
69
Which of these metals is found as nuggets?
Silver
Bronze
Copper
Gold
70
Which one of these metals is used for bridges and the engines of cars?
Bronze
Steel
Iron
Gold
71
When a liquid is changing into a gas...
The particles become closer together
The temperature continues to increase
The intermolecular force becomes weaker
72
Which of these statements about natural selection isn't true?
Animals with advantageous genes are less likely to survive
Some animals have advantageous genes
More demand than supply leads to competition for food
There is variation within a species
73
Which of these statements isn't true about Wegener?
He trained as an astronomer and a meteorologist
Many scientists accepted his theory at the time
He lived in the 20th Century
He came up with continental drift theory
74
What percentage is given out as waste energy?
90%
1.9%
10%
9%
75
Which alkene has three carbon atoms?
Butene
Propene
Ethene
76
A recessive allele is?
Never expressed
Only expressed in absence of dominant allele
Always expressed
77
What is the Central Nervous System?
Brain
Spinal Cord
Brain and spinal cord
Brain, Spinal Cord and all the neurones in your body
78
What did not happen during early earth?
There were many continents
Oceans began to form as vapours condensed
Green plants started to grow
Volcanoes started to cool down
79
Which of these statements is true about auxin?
It makes roots grow toward light
It is more concentrated on the shaded side of a plant
It makes the shoot grow away from light
80
Where do earthquakes occur?
Where tectonic plates meet
All of the above
Only above sea level
Only in hot and dry countries
81
Which of these has a highly elliptical orbit?
Comet
Earth
Sun
Meteor
82
Which of these orbits planets?
Moons
Black holes
Comets
Sun
83
Which of these statements about bonding is true?
Covalent bonding happens between a metal and non metal
Covalent bonding involves a sharing of electrons
Ionic bonding can happen between two gases
Metallic bonding does not have delocalised electrons
84
What is the Haber process used for?
Cheese and sulphuric acid
Fertilisers and hydrochloric acid
Fertilisers and nitric acid
Fertilisers and sulphuric acid
85
Which of these are fossil fuels?
Oil
All of the above
Gas
Coal
86
After 700 million years what will a huge main sequence star become next?
Planetary Nebula
Supernova
Red Super Giant
Black Hole
87
Diffraction allows us to?
Hear around corners
See around corners using a periscope
88
Which scientist thought the earth was at the centre of the universe?
Galileo
Ptolemy
Copernicus
Darwin
89
What is the optimum body temperature?
38
36
39
37
90
Which hormone controls sugar levels?
Insulin
LH
Glucose
Glycogen
91
Which of these isn't true about EM waves?
They travel through vacuums
They travel at the speed of light
They are transverse
They are longitudinal
92
Which of these kingdoms never has a cell wall?
Fungi
Animals
Prokaryotes
Protoctists
93
Which of these statements about genetic diseases is not true?
For Sickle cell anaemia red blood cells are the wrong shape
CT and Sickle cell anaemia cannot skip a generation
Cystic Fibrosis is where the body makes thick sticky mucus
CT and Sickle cell anaemia are caused by a recessive allele
94
Which part of the cell contains your genetic information?
Mitochondria
Cytoplasm
Nucleus
Cell membrane
95
Which of these statements about diabetes is false
For Type 2, the body doesn't know how to respond to insulin
For Type 2, the person is injected with insulin
There are two types of diabetes
For Type 1, the body doesn't make enough insulin
96
Which of these hormones is produced in the pancreas?
Testosterone
LH
Insulin
FSH
97
What is necessary for Optical Fibres to work?
Total Internal Reflection
Total External Reflection
No Internal Reflection
98
Which planet comes directly after Jupiter?
Uranus
Mars
Saturn
Mercury
99
What is an allele?
Different versions of the same gene
The same version of a different gene
The same version of a gene
Different genes
100
Carbon Dioxide is removed from the air by?
Eating
Photosynthesis
Respiration
Burning fossil fuels
