Apes Unit 6 Test Questions with Verified
Solutions
which country generates the most electricity from wind energy - ANSWER-US
what is the correct type of energy utilized to produce tidal and hydroelectric power -
ANSWER-kinetic energy
using heat from radioactive decay deep within Earth to heat water to spin turbines is an
example of - ANSWER-geothermal energy
which country has the highest percentage of electricity facilitated by wind power -
ANSWER-Denmark
What form of energy production can potentially compete with food resources for a
community - ANSWER-
a fuel cell works by combining __ and __ to produce water and electricity - ANSWER-
hydrogen and oxygen
what is a benefit of geothermal energy over hydroelectric energy when generating
electricity is that geothermal energy___ - ANSWER-doesn't cause flooding
main advantage of nondepletable energy sources over nonrenewable energy sources -
ANSWER-nondepletable energy sources won't run out on a human time scale
after wind turbines are installed, what is only fossil fuel input required for them to
generate electricity - ANSWER-fuel to travel to maintain the wind turbine park
pros tidal energy - ANSWER-nondepletable
no cost after production
cons tidal energy - ANSWER-potential disruptive to marine organisms
geographically limited
pros geothermal energy - ANSWER-nondepletable
no cost after initial production
can be installed anywhere
cons geothermal - ANSWER-emits hazardous gases and steam
geographically limited
, pros wind - ANSWER-nondepletable
no cost after production
low up front cost
cons wind - ANSWER-turbine noise
death of birds and bats
geographically limited
aesthetically displeasing to some
stoarge batteries require off grid systems
pro HFC - ANSWER-efficient
zero pollution
cons HFC - ANSWER-producing hydrogen is energy intensive process
lack distribution network
hydrogen stoarge challenges
nuclear pros - ANSWER-no air pollution once plant is in operation
countries can limit the need for imported oil
high energy density
ample supply
nuclear cons - ANSWER-possibility of accidents/meltdowns can be catastrophic
disposal of radioactive waste
unpopular/generate protests
plants are expensive bc of legal challenges
possible target for terrorist attacks
explain use of fission in nuclear power - ANSWER-nuclear energy is stored in nucleus
of atoms, in order to use this energy it must be released from the nucleus by fusion or
fission.
fusion- atoms in the nucleus are combined to make new atoms and energy is released
as a byproduct of the reaction
fission- when atoms are split and energy is released as a byproduct of the reaction
*Nuclear power plants use fission to harvest energy by splitting uranium atoms into two
separate atoms. The energy from this reaction is released as heat and then stored for
use.
why is a gas water heater more energy efficient OVERALL than an electric water heater
when electricity comes from coal plants - ANSWER-the energy efficiency of coal is low
world's most abundant conventional fossil fuel - ANSWER-coal
supplies finite energy known as - ANSWER-nonrenewable
Solutions
which country generates the most electricity from wind energy - ANSWER-US
what is the correct type of energy utilized to produce tidal and hydroelectric power -
ANSWER-kinetic energy
using heat from radioactive decay deep within Earth to heat water to spin turbines is an
example of - ANSWER-geothermal energy
which country has the highest percentage of electricity facilitated by wind power -
ANSWER-Denmark
What form of energy production can potentially compete with food resources for a
community - ANSWER-
a fuel cell works by combining __ and __ to produce water and electricity - ANSWER-
hydrogen and oxygen
what is a benefit of geothermal energy over hydroelectric energy when generating
electricity is that geothermal energy___ - ANSWER-doesn't cause flooding
main advantage of nondepletable energy sources over nonrenewable energy sources -
ANSWER-nondepletable energy sources won't run out on a human time scale
after wind turbines are installed, what is only fossil fuel input required for them to
generate electricity - ANSWER-fuel to travel to maintain the wind turbine park
pros tidal energy - ANSWER-nondepletable
no cost after production
cons tidal energy - ANSWER-potential disruptive to marine organisms
geographically limited
pros geothermal energy - ANSWER-nondepletable
no cost after initial production
can be installed anywhere
cons geothermal - ANSWER-emits hazardous gases and steam
geographically limited
, pros wind - ANSWER-nondepletable
no cost after production
low up front cost
cons wind - ANSWER-turbine noise
death of birds and bats
geographically limited
aesthetically displeasing to some
stoarge batteries require off grid systems
pro HFC - ANSWER-efficient
zero pollution
cons HFC - ANSWER-producing hydrogen is energy intensive process
lack distribution network
hydrogen stoarge challenges
nuclear pros - ANSWER-no air pollution once plant is in operation
countries can limit the need for imported oil
high energy density
ample supply
nuclear cons - ANSWER-possibility of accidents/meltdowns can be catastrophic
disposal of radioactive waste
unpopular/generate protests
plants are expensive bc of legal challenges
possible target for terrorist attacks
explain use of fission in nuclear power - ANSWER-nuclear energy is stored in nucleus
of atoms, in order to use this energy it must be released from the nucleus by fusion or
fission.
fusion- atoms in the nucleus are combined to make new atoms and energy is released
as a byproduct of the reaction
fission- when atoms are split and energy is released as a byproduct of the reaction
*Nuclear power plants use fission to harvest energy by splitting uranium atoms into two
separate atoms. The energy from this reaction is released as heat and then stored for
use.
why is a gas water heater more energy efficient OVERALL than an electric water heater
when electricity comes from coal plants - ANSWER-the energy efficiency of coal is low
world's most abundant conventional fossil fuel - ANSWER-coal
supplies finite energy known as - ANSWER-nonrenewable
