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Science 6 > Tema 3 - Energy > Flashcards

Tema 3 - Energy Flashcards

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1
Q

Boiler

A

Calentador

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2
Q

Pellet

A

Compress wood

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3
Q

Solar panels

A

Paneles solares

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4
Q

What is a passive house?

A

An efficient home

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5
Q

What are the form of energy?

A

1- Light energy
2- Thermal energy
3- Sound energy
4- Chemical energy
5- Electrical energy
6- Mechanical energy
7- Nuclear energy

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6
Q

What are renewable energy?

A

1- Solar energy
2- Wind energy
3- Hidraulic energy
4- Biomass energy
5- Geothermal energy

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7
Q

What are non-renewable energy?

A

1- Fossil fuels
2- Uranium

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8
Q

What is light energy?

A

The energy from the sun

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9
Q

What is the thermal energy?

A

Energy from the sun
Energy from the gas
Energy from the fossil fuels like petroleum

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10
Q

What is the sound energy?

A

Energy from the waves it can be heard, sound of music, sound of wind

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11
Q

What is chemical energy?

A

Chemical reaction

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12
Q

What is the nuclear energy?

A

Produced by splitting an atom of uranium

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13
Q

What is a mechanical energy?

A

1- Kinetic energy
2- Potencial energy

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14
Q

What is the measure of energy?

A

1- Jule
2- kilowatt per hour

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15
Q

What is the solar energy?

A

Energy from the sun, it can converted in electrical energy or thermal energy

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16
Q

Advantages of solar energy?

A

1- Not dangerous for health
2- Not pollution
3- Not create dangerous waste products

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17
Q

Disadvantages of solar energy?

A

1- Solar panels need a lot of space
2- Sunlight is not distribuyed equally everywhere
3- Cloud days

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18
Q

What is the wind energy?

A

The wind move turbines, turbines genered electricity

19
Q

Advantages of wind energy?

A

1- Cheap tu run
2- It is possible install in many place around of the world

20
Q

Disadvantages of wind energy?

A

1- Not provide constan energy
2- Cause enviroment impact
3- Kill the birds with de turbines

21
Q

What is a hydraulic energy?

A

Energy produce by the water store in a hight altitude, this energy is generate when it falls

22
Q

Advantages of hydraulic energy?

A

1- It is very cheap and safe
2- Energy can be generated and used when it is needed

23
Q

Disadvantages of hydraulic energy?

A

1- The construction of dams damages habitats and cause biodiversity loss.
2- Seasons and droughts can affect production of energy

24
Q

What is biomass energy?

A

Energy produce by burning organic material

25
Q

Advantages of biomass energy?

A

It is cheaper than fossil fuels

26
Q

Disadvantages of biomass energy?

A

1- Air pollution and global warning
2- It is not very efficient

27
Q

What is geothermal energy?

A

Heat from within the earth

28
Q

Advantages of geothermal energy?

A

It is a cheap and safe

29
Q

Disadvantages of geothermal energy?

A

1- Limited certain geographics areas
2- Environment impact

30
Q

What forms of fossil fuels?

A

1- Coat
2- Crude oil
3- Natural gas

31
Q

What is coal?

A

Sedimentary rocks that is burnt and produce energy

32
Q

Advantages of coal?

A

Cheap and reliable

33
Q

Disadvantages of coal?

A

1- air pollution
2- Mining is dangerous

34
Q

What is crude oil?

A

It is taken from the bottom of the sea or the land

35
Q

Advantages of crude oil?

A

1- Reliable
2- It is used to make different materials such as plastic

36
Q

Disadvantages of crude oil?

A

1- Air pollution
2- Sea pollution
3- Expensive

37
Q

What is natural gas?

A

It is a methanol is used to cooking

38
Q

Advantages of natural gas?

A

1- Reliable
2- Cheaper than oil

39
Q

Disadvantages of natural gas?

A

1- Flammable
2- Poisonous

40
Q

What is uranium?

A

Uranium is used in nuclear power plants to produce steam, which is used to generate electricity

41
Q

Advantages of uranium?

A

1- It is reliable
2- Not produce greenhouse gases

42
Q

Disadvantages of uranium?

A

1- Dangerous radioactive
2- Risk of accident

43
Q

How has energy changed our society?

A

1- Stone age: discovered fire, food can be cooked, heat and light

2- Ancient History: use water and wind, windmills, watermills

3- 1700, industrial revolution: coal and steam, people move from de rural to the city, became pollution, discovery electricity.

4- 1800, use of petroleum in engine vehicules, travelling faster, more pollution.

5- 1900, nuclear power plant to generate electricity (1950), its reduce use of fossil fuels, 1970, alternative cleaner energy source.

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