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11 11
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gener
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run
fossiTues reliable
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produce CO_ when burned ↳ electricity &
CO , not produced ·
river dams hard to find
contribute to global warming ·
does not contributeto ·
causes environmental damage geothe
generation global warning G
#waste is radioactive
· alters habitats Et h
nucleartuel. retransported reliable + produces large land needed
·
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large areas o
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displacement of people solar
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dense xidal will not run out tidal barriers expensive
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Selectricity ·
no pollution (does not to build
GW) disrupts shipping+trade blocks biofu
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reliable + produces biom
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11 11
G
ee
FUEL U FUEL 1
S
elec
E H T replenise turbines are expensive to build
gener
cannot be
hydroelectricity out
+
will not
+
·
run
fossiTues reliable
· ·
·
produce CO_ when burned ↳ electricity &
CO , not produced ·
river dams hard to find
contribute to global warming ·
does not contributeto ·
causes environmental damage geothe
generation global warning G
#waste is radioactive
· alters habitats Et h
nucleartuel. retransported reliable + produces large land needed
·
· ·
large areas o
/Uranium heat as are expensive quantities energy ·
displacement of people solar
G E+ s
+Plutonium) extremelyenergy to build + decommisicu
-
dense xidal will not run out tidal barriers expensive
:
· ·
Selectricity ·
no pollution (does not to build
GW) disrupts shipping+trade blocks biofu
;
contribute to
·
LOWER - the rate of energy transfer generation large
·
sewage
reliable + produces biom
↳ measured in Watts (W) quantities g energy
a habitats affected 6 elect
↑ I
expensive to build trans
generators
:
will not run out
wind
·
-energy
transferred ---EQUATIONS
REARRANGED does not
6 no polluticu wind not reliable
:
· :
E
·
p (5) FOR POWER : electricity contribute to
global large areas o land
needed
U
-
= ·
A t -
warming
generation noisy
E
·
power (W) <time(taken) E Px t
t =
ENERGY
SYSFN
=
(s) -
->
LAW OF CONSERVATION OF ENERGY :
INPUT
needed
W
-----
SPECFICHEAT CAPACITY (SHC) the amount
- & energy
cannot be created or destroyed
-
↳
dettatheta to raise
the temp · 19 energy
---
.
mass (leg) ~
stored transferred dissipated
deta Gasubstance by 12
↳ can or
.
only be , ,
to surroundings
-
I
SHC change in
↳ measured in
5/kg°C ↳ in a closed
system ,
total amount of energy
change in energy losse ENERGYSIORE
a
ENStaythe
same.
no
(5/leg'd temperature
42p
Anermal) energy
of He0 (water)
(oC) ↳ SHC
(5) ↳ chemical
C-> YD - ⑳
ge
E2S
i) · ⑧
2
E1
thermall
REARRANGED EQUATIONSFORSHC
is
↳ I/ I I n
↳
internal
cyo)c ⑲M
-
**
E E
m
=
O =
↳ Kinetic
I⑯
=
mx 0 mxC ↳ nuclear
EFFICIENC
↑
energy store of a stretched ENERGY -
mathematicalconcesei
/object (E)
OUTRRY POIENIALENERGY LEPE
ELASTIC understrain
I - (x0 5)
-
efficiency
= use
~extension (Eff)
.
tot
-energy stored moving object
X a
2
-2 (m) -
Ee -
X He X
a 4
extension" KINETICENERGY (RE) :
I ele,
everything
Spring (N/m) massTug!
..
elastic potential quadruples(4) ---5)
(X
