heat and temperature Flashcards
name 8 different types of energy
strain, movement(kinetic), gravitational, heat , sound, light, chemical and electrical
explain the law of the conservation of energy
energy can never be destroyed or created. only changed from one type to another
name 4 types of non-renewable sources
oils, gases, coal, nuclear
what is a non-renewable source
something which can run out
name 6 types of renewable
tidal, solar, wind, hydro, geothermal, biomas
name 3 fossil fuels
oils, gases, coal
describe 4 uses for coal
home heating, generating electricity, making steel, making concrete
describe 6 uses of gas
generating electricity, home use, making plastic,, fertilizers, drugs, fabrics
describe 4 uses of oils
home heating, makeup, welly boots, plastic bags, golf balls
5 advantages of fossil fuels
easy to find, reliable, easy to transport, contains chemical energy,
how were oils/gases formed
dead sea creatures, plants are buried over millions over years, heat and pressure turns them into oils and gases
what is nuclear fission
the nucleus of an atom is split and turned into energy
what are the advantages of nuclear power
it is low on carbon energy sources and is essential to our response to climate change
what are the disadvantages to nuclear power
expensive to build and produces radio active waste
what is sustainable energy
source of energy that can be natualy replaced
give an example of a sustainable source
wood, hay, straw
what is a finite energy source
something that will eventually run out
what is a infinite energy source
something that will last forever
what is an advantage of wind energy
it doesn’t create any pollution
what is a disadvantage of wind energy
it wont always be windy
what is an advantage of solar energy?
does not produce any pollution s
what is a disadvantage of solar energy
it may not always be sunny
what is an advantage of hydroelectric energy?
no pollution
what is a disadvantage of hydroelectric energy?
there may not be enough rain / water to produce the energy
what is biomass energy?
the use of organic material to generate energy
give an example of organic matter used in biomass energy
woods pellets, dung, sewage , grass clippings
what is geothermal energy?
heat from the earth
what is wave energy?
the power of waves in the ocean to generate electrivity
what does heat energy do to particles of a solid?
makes the particles that make up the solid vibrate
when heat is transferred in solids what way does it travel?
from hotter areas towards cooler areas
what is convection
the transfer of heat through liquids
requires particles
what is conduction
the transfer of heat or electricity through a solid
reqires particles
what is radiation
the way heat travels from the sun to earth through a vacuum
does not require particles
at what speed does radiation travell?
the speed of light
Name some conductors
metals
eg copper, steel, magnesium, gold or tin
what is an insulator?
a poor conductor eg. wood , plastic, glass, oxygen, nitorgen
