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gcse revision > core physics > Flashcards

core physics Flashcards

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1
Q

what is inafared radiation?

A

immitted by surgace of shiny objects,

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2
Q

what is u value?

A

shows how fast heat can transfer through a material

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3
Q

what are the three wave properties?

A

refraction
defraction
reflection

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4
Q

what are the 9 types of energy?

A 
elecr[tric
light
sound
kinetic
nuclear
thermal
gravational 
ekastic 
chemical
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5
Q

renewable energy sources?

A

wind power

solar power

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6
Q

what is redshift?

A

futher planet away uts on the redshift on the spectrum and if its closer its on the blue side of the sectrum

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7
Q

what is the Doppler effect?

A

if its close the wavelength is smaller so higher pitch if its futher away the longer the wavelength so its quieter

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8
Q

hydroelectric power?

A

falling water
floods
damns
water turbines

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9
Q

what is evapouration?

A

liquid turning into a gas when heated

particles escape from a liquid

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10
Q

what is condensation?

A

when a gas turns into a liquid by cooling

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11
Q

which three ways is heat transferred?

A

conduction
convection
radiation

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12
Q

specific heat capacitys fornular?

A

e=m x c x o

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13
Q

how do you calculate efficiency?

A

useful energy in divided by useful energy out

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14
Q

what are the units of energy?

A

kilowatt hours

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15
Q

what is geothermal energy?

A

heat from underground
volcanic areas
hot rocks
radioactive elements

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16
Q

what is diffraction and refraction?

A 
d= waves spreading out
r= change of speeds direction
17
Q

electromagnetic spectrum?

A 
radio
micro
infared 
light
ultraviolet
xray
gamma
18
Q

factors of transverse waves?

A

sideways vibrations
light
ripples
sling

19
Q

what can carbon capture do?

A

reduce the impact of carbon dioxde

20
Q

what are biofuels made from?

A

plants

waste

21
Q

conservation of energy?

A

energy can be transferred from one form into another or dissipated

22
Q

factors of longditudonal waves?

A

same line vibrations

shock waves

23
Q

what is shc?

A

tells how much energy something can store

24
Q

difraction?

A

way sound moves through a gap

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