renewable energy sources and nuclear energy Flashcards

1
Q

nuclear energy is

A

the energy contained within an atom

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

nuclear energy is released through

A

nuclear reaction that split or combine atoms

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what is fission

A

the splitting of atoms to produce energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

nuclear fission uses a type of what

A

uranium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what happens when uranium atoms come apart

A

heat is produced that produces steam that is converted into electricity through generators

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

fusion is

A

the process in which nuclei of small atoms join together to form new atoms

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

nuclear fission: renewable or not

why?

A

not

it uses uranium-235 which is limited

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

major concern with nuclear energy is

A

the radioactive waste it produces

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

EPA

A

environmental protection agency

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

nuclear waste must be

A

stored and contained for at least 10000 years before being returned to the environment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what is the main disadvantage with nuclear fission

A

it can only occur at very high tempatures in a labratory setting

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

what is an electrical generator

A

a device in which some form of energy is used to cause a magnet and coiled wire to move relative to one another, producing an electrical current

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

what is earths primary source of energy

A

da sun

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what is solar energy

A

the energy that is contained in the electromagnetic waves that emenate from the sun

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

most of solar energy is converted to

A

heat

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

the circulation of earths atmosphere and sea is caused by what

A

solar energy

17
Q

what are solar cells for

A

collecting sunlight and transmitting it into electricity

18
Q

problems with solar cells

A

does bad on cloudy days, energy is variable, and energy is hard to store in batteries

19
Q

what is wind

A

and indirect form of solar energy that results from the uneven heating of the earths atmosphere

20
Q

windmills are used to

A

generate electricity

21
Q

downside of wind energy

A

its variable

22
Q

a wind farm is

A

a large number of windmills in an area for the purpose to produce energy

23
Q

wind power is

A

electricity produced by wind

24
Q

yawing is

A

the action of turning a wind turbine to face the winds direction

25
Q

water wheels have been used since

for

A

ancient times

grinding grain into flour

26
Q

what produced most of the energy in factories during the first half of the industrial revolution

A

water wheels

27
Q

the water cycle is

A

water evaporate when heat, come back down to earth, release energy while go to ocean

28
Q

in order to generate electricity from running water

A

a dam must be built to contain it

29
Q

what happens behind a dam

A

a lake is formed and turns the turbines at the base of the dam when it is released

turbines turn generators with produce electricity

30
Q

downside with construction of dams

A

destroys forest and wildlife

31
Q

what is conservation

A

the limited use of energy order to prolong its supply

32
Q

what are the three r’s

A

reduce reuse recycle

33
Q

can electrical energy be transformed into almost any other type of energy

A

yes

34
Q

geothermal energy is

A

the energy that exists within the earth

35
Q

where does geothermal energy escape through

A

hot springs, geysers, volcanoes

36
Q

where did geothermal energy originate from

A

when it was first formed and radioactive rocks