Sources of electricity Flashcards

1
Q

Where is Ph located?

A

Pacific ring of fire

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2
Q

50% of leec demand is done by ?

A

Geothermal

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3
Q

While the other 50% that meets the demand is?

A

coal

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4
Q

one of the most common sources of electrical power known to filo

A

Hydroelectric plant

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5
Q

the force from a stead flow of water from waterfalls or dam

A

Hydroelectric plant

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6
Q

coverts rotary motion to mechanical energy

A

turbine

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7
Q

device that converts mechanical energy to electricity

A

generator

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8
Q

power coming from the crust and upper mantle of the earth

A

geothermal plant

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9
Q

teh energy is transfered due to the continouse movement of molten rocks and springs

A

geothermal energy

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10
Q

Main source of electricity in PH

A

geothermal energy

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11
Q

Ex of geothermal energy (3)

A

m,ak ban, Mt apo , Tiwi geothermal Plant

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12
Q

the elements tharsnmitted by the sun

A

protons

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13
Q

——- they are directly transmitted into artificial devices called ——

A

Protons, solar panels

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14
Q

—— convert solar energy into electricity w/o using any —–

A

Solar panels, mechanical process

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15
Q

semiconductor materials called —–

A

Photovoltaic cells

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16
Q

Photovoltaic cells are materials called —-

A

Semiconductors

17
Q

—– DIRECTLY converts solar energy into electricity

A

Photovoltaic cells

18
Q

Ex of solar energy (2)

A

S & R membership shopping mall, negros solar farm

19
Q

mist efficient source of energy

A

nuclear energy

20
Q

comes from emitted rays from radioactive elements (2)

A

heat or radiation

21
Q

so stable and powerful it can operate 10 turbines with just a handful of its element

A

nuclear energy

22
Q

can be conserved and transformed and changes into another form

A

nuclear energy

23
Q

made out of liquid paste or electrolyte and 2 different electrodes (2)

A

Battery or dry cell

24
Q

batteries which power can be regained are called

A

rechargeable batteries

25
batteries which power cannot be regained are called (2)
primary or voltaic cells
26
produce by applying heat on 2 dissimilar items
thermal energy
27
thermal nergy was obs in ---- by german physicist ----
1821, Thomas Seeback
28
electrical potential across certain types of crystals
Piezoelectricity
29
when the crystal is ---- its --- are displaces, causing --- in its unit cells
pressured, ions, polarization
30
electrical charges that accumulate from solid materials in response to applied mechanical stress
Piezoelectricity
31
comes from the word that means electricity resulting from pressure and latent heat
piezoelectricity
32
----- use of wind to provide mechanical power through ____
wind energy, wind turbines
33
------- and ------ do the other work such as milling or pumping
generators and traditionally
34
--- wind turbines that range from ---- to several MW
Utility- scale wind, 100kw
35
electricity is delivered and distributed to electric users
utility scale wind
36
small wind turbines that are below 100 KW
distributed or small wind
37
used to power a singular home, or farms
distributed or small wind
38
wind turbines that are erected in large bodies of water
offshore wind
39
larger that land based turbines and can generate more power
offshore wind 3