Energy

Question 0

Energy Transformation?

Answer 0

A change from one form of energy to author is called______________or an energy conversion.

Question 1

What is fuel ?

Answer 1

Is a substance that provides energy -such as heat,light,motion,or electricity.As a result of a chemical change .

Question 2

What is combustion ?

Answer 2

Fuels contain stored chemical energy which can be released by ________or burning .

Question 3

What are fossil fuels ?

Answer 3

Is energy rich substance formed from the remains organisms.

Question 4

Hydrocarbons?

Answer 4

Are chemical compounds that contain carbon and hydrogen atoms

Question 5

What is Petroleum?

Answer 5

Is anther name for oil ,liquid ,fossil fuels .

Question 6

Refinery?

Answer 6

Crude oil is heated and separated into fuels and other products

Question 7

What are Petrochemical?

Answer 7

Compounds that are made from oil .(plastics,paints,medicine,and cosmetics)

Question 8

What are 3 main fossil fuels ?

Answer 8

Coal,Oil,and Natural Gas

Question 9

What is Hydroelectric Power ?

Answer 9

Electricity produced by flowing water (Dam Bridge)

Question 10

What is Biomass fuels ?

Answer 10

A group of fuels which are made from living things

Question 11

What is Gasohol ?

Answer 11

Adding the alcohol to gasoline can be used as fuel for cars .

Question 12

Geothermal energy ?

Answer 12

Intense heat from earths interior that warms the magma

Question 13

What are five renewable energy sources ?

Answer 13

Geothermal,biomass fuels, water, wind,and hydrogen .

Question 14

Energy resources come in 2 forms

Answer 14

Non-renewable

Renewable

Question 15

What is Non- renewable

Answer 15

Gone once they are used up (take thousands of years to re- form )

Question 16

Define Fossil fuels

Answer 16

Provide most of the energy we use today (formed from remains of organisms )

Question 17

What are 3 types of Fossil Fuels ?

Answer 17

Coal, Oil, and Natural Gas

Question 18

What’s coal ?

Answer 18

• The are formed from plant remains

- Must be mined from the ground

Question 19

What’s Oil?

Answer 19

• liquid Fossil

- Formed from small animals ,algae,and other organisms that lived in the SEA millions years ago

Question 20

What’s Natural Gas ?

Answer 20

• mixture of methane + other gases

- Forms from some of the fm same organisms as oil

Question 21

Define Renewable

Answer 21

• constantly being supplied

- scientist are working to find ways to use these resources to meet our energy needs

Question 22

The types of Renewable resources (6)

Answer 22

Solar Energy 
Hydroelectric Power 
Wind power 
Biomass Fuels 
Geothermal Energy 
Hydrogen Power

Question 24

Hydroelectric power

Answer 24

• power produced by flowing water
• a dream built across a river blocks
• the flow of water and creates a reservoir

Question 25

Wind power

Answer 25

- wind can be used to turn a turbine and generate electricity - wind is a major source of power in places where it is difficult to transport fuel

Question 26

Biomass fuel

Answer 26

- made from living things (wood, leaves, food waste ,manure ) - Alcohol can be added to gas aline methane create by bacteria can hear buildings ,etc.

Question 27

Geothermal Energy

Answer 27

- water is heated by the magma (melted rock) under Earths surface

Question 28

Hydrogen Power

Answer 28

- pure hydrogen burns cleanly ,creates no smog or acid rain ,exists on Earth in large supply

Question 29

Nuclear Power Plants

Answer 29

Another source of power comes from splitting the nucleus of an atom !- - about 20%of the U.S. + more than 70%of France's energy comes from this source - the heat released by splitting atoms is used to change water into steam turns turbines to generate electricity

Question 30

2 ways to preserve our current energy resources

Answer 30

1) Increasing the efficiency of our energy use | 2) Reducing energy use

Question 31

Increasing the efficiency of our energy use is ...

Answer 31

``` • Efficiency-the power percentage of energy actually used .Left over energy is usually lost as heat How can we increase ? 1) insulation to trap heat loss 2)better light bulbs 3)better car tires and engines 4) reduce the number of cars on the road ```

Question 32

Reducing Energy use is....

Answer 32

1) riding a bike or walk instead of driving 2) Recycle 3) use a fan instead of air conditioning

Question 33

What is it called when energy is stored we call it ________

Answer 33

Potential

Question 34

Energy moving is called

Answer 34

Kinetic energy

Question 35

Water used to power generator creating

Answer 35

Electrical energy

Question 36

3 substance can make electricity

Answer 36

Burning coal Falling water Nuclear power

Question 37

Fossil fuels are something that we pump or_______up .

Answer 37

Dig

Question 38

Energy from our foods which began as _____ energy from the sun .

Answer 38

Light

Question 52

Solar energy

Answer 52

- comes from the sun - is the source either directly or indirectly of most other renewable energy sources - Earth revives enough solar energy for 40 years