WorksheetsRenewable Energy
Total questions: 23
Worksheet time: 12mins
To extend oil supplies, developed countries have begun mining and processing tar sands. How does the extraction of tar sands oil compare to conventional crude oil?
Tar sands oil has a much higher EROI, keeping gas prices low.
Tar sands oil has a smaller carbon footprint and is less polluting.
Tar sands oil has a much higher land footprint.
The two sources of oil have identical advantages and drawbacks.
The headwaters and reservoir of the dam. (Refer to the diagram of the hydroelectric dam.)
(a)
Spins as water passes through it. Attached to a generator. (Refer to the diagram of the hydroelectric dam.)
(a)
How does the presence of the dam impact the characteristics of the water in section A?
Water velocity increases.
Water velocity decreases.
Sediments settle out of the water.
More sediments dissolve into the water.
The water warms and undergoes more evaporation.
Which section of a river is the least impacted by the presence of one or more dams built along it?
The source or headwaters.
The floodplain in the transition zone.
The mouth, especially if a delta is present.
What is the purpose of building a pumped storage area near a hydroelectric dam?
To increase the constant supply of electricity produced by the dam.
To make the electricity output of a dam more adjustable based on demand.
To reduce the risk of the dam running dry during a drought.
To reduce sedimentation behind the dam itself.
Tidal power plants are another form of hydrokinetic energy. Where are they built?
At the headwaters or source of a river.
Within a floodplain of a river.
At an estuary near the mouth of a river.
In the ocean, above a shallow sea ecosystem.
What are the two most significant ecological impacts of tidal power plants?
Reducing nutrient and sediment transportation.
Inhibiting movement of organisms along the ecosystem.
Flooding a large area of land upstream of the dam.
Blocking any water from the river reaching the ocean at all.
Wind power generates electricity by…
Boiling water to generate steam.
Passing moving water through a turbine.
Passing moving air through a turbine.
Directly converting matter in the air into electric current.
What two advantages do offshore wind farms have over those on land?
Smaller land footprint.
Greater output.
Cheaper to build.
No noise pollution or disruption of scenery.
Summarizes the process of electricity production in a geothermal plant.
I, IV, II, III
III, I, IV, II
IV, III, I, II
II, I, III, IV
II, I, IV, IV
What are two drawbacks of electricity generated from geothermal plants?
High upfront costs.
Much greater land footprint than hydro and wind power.
Some production of air pollution.
High risk of bird and bat kills.
Disruption of river flow and dynamics.
Which of these is an advantage of photovoltaic over parabolic solar collection?
PV has higher upfront costs due to the costs of building a turbine and generator.
Parabolic can be built anywhere but PV can only be built in deserts.
Constant energy production with PV instead of intermittent.
PV can be constructed on land already in use (e.g. parking lots).
What type of solar production facility has collectors that look like this?
(a)
What area of the United States, as shown above, would be a good choice for a large photovoltaic solar collection facility?
A
B
C
D
E
What area of the United States would be a good choice for a geothermal plant?
A
B
C
D
E
What area of the United States would be the best choice for a large wind farm?
A
B
C
D
E
A home pumps water into heat collectors on its roof. When the water is warmed, it is returned to a storage tank in the house to be used for heat, showers, etc. What is this an example of?
Active solar heat
Passive solar heat
Geothermal home heat
Biofuel heat
You have a small refrigerator/freezer that uses about 100W of energy per hour. Across an entire day (24 hours), how much energy is it consuming in kilowatt-hours?
0.1kWh
2.4kWh
24kWh
2400kWh
Assuming electricity costs 12.5 cents per kWh, how much does it cost to run the refrigerator per day?
$30.00
$3.00
$0.30
$0.03
The hardware store has 3 types of bulbs available, all produce the same amount of light. Which is the most efficient?
The 60W incandescent bulb
The 9W compact fluorescent bulb
The 6W LED bulb
What two forms of energy are produced in a cogeneration power plant?
Electricity
Heat
Light
Liquid fuel
A neighbor has photovoltaic solar panels installed on their roof. They received a rebate from the government that covered about 25% of the costs. What is this an example of?
Renewable energy portfolio
A subsidy
Energy guide (energy star)
Fuel economy standards
