Nuclear Energy
Which of the following is used in nuclear power plants currently in the US -Uranium-235,
Uranium -238, Plutonium-238, Plutonium-235
Uranium-235
Which of the following is not a derivative of fossil fuels? -DDT -Cellulose -Polystyrene
Cellulose- It is derived from plants :)
name 3 of the countries with the largest oil reserves besides the Middle East are;
Canada, Venezeula, Russia, North Africa
Drawbacks of using solar
pollution during manufacture, expensive, nighttime
which Fossil Fuel Energy is a potential threat to the environment?
All; oil, gas, coal produce carbon dioxide
If a sample of radioactive waste has a half life of ten years, how much of a 4 g. sample would remain after 20 years?
1 g
What type of coal has the highest energy content? -Peat -Lignite -Bituminous -Anthracite
anthracite
What nations have the highest proven coal reserves?
name 3
The United States, Russia, China, Australia, India
What country produces the greatest output of hydroelectric power?
China
If a water heater has 35% efficiency, for every 10 J of energy consumed how much usable energy is produced?
.35 x 10 J= 3.5 J and
10 J-3.5 = 7.5 J wasted heat energy
Which of the following is not an environmental concern of nuclear power plants? -Carbon Dioxide -Thermal Pollution -Radioactive Waste Disposal
Carbon Dioxide
Which type of fossil fuel supplies the most commercial energy to the world today?
Oil
Sources of energy are driven by the sun?
solar, geothermal, wind, biomass, coal
solar, wind, biomass, coal
Which is not a Disadvantage of using hydrogen fuel cells?
Storing H gas, availability of H gas, explosive nature of H gas, water for electrolysis
water for electrolysis
_____________ is when energy efficiency is increased by using waste heat as an additional energy source. Ex. excess waste heat is used to generate electricity and heat hot water.
cogeneration
Radon comes from which material found naturally in the soil;
coal, natural gas, U-238,
U-238
Which is not a problem with fracturing?
1. wells run out quickly, 2. water cannot be cleaned and reused, 3. increase in earthquakes 4. Nat. gas has low energy density 5. drinking water may become contaminated
Nat. gas has a high energy density
In the United States, most electrical energy is generated by ; nuclear, oil, natural gas, coal
natural gas
This type of renewable energy source is a significant contributor to deforestation.
Biomass
Which country uses the most wind energy today
Denmark
In contrast to low-level radioactive waste, most high level radioactive waste is stored where?
(low level, clothing, tools, gloves)
At the reactor site
This is the least environmentally detrimental fossil fuel.
Natural Gas
Iceland is using this renewable energy to replace fossil fuel use?
geothermal
Which is not true about wind power;
1. the land can be used other purpose, 2. water is not contaminated during use, 3. wildlife is not hurt, 4. no pollution formed during electricity generation
wildlife is hurt
When energy is transferred, some is lost in the form of heat... This explains which law__________.
The 2nd Law of Thermodynamics