Unit 6 MCQ Exam

Last updated 12 months ago

25 questions

1

Ancient heat from decay of radioactive elements from deep within the Earth

Geothermal

Hydroelectric

Photovoltaics

Biomass

Without conservation, this energy source could cause deforestation

Photovoltaics

Geothermal

Hydroelectric

Biomass

Uses solar photons to knock electrons off a semiconductor to create electricity

Geothermal

Biomass

Hydroelectric

Photovoltaics

Uses the potential energy of stored water from a reservoir to create electricity

Geothermal

Biomass

Photovoltaics

Hydroelectric

When supplies of a particular energy type are limited, it is known as a

Alternative resource

Nondepletable resource

Renewable resource

Nonrenewable resource

Due to the abundance and low cost of this resource, this energy source can provide the greatest amount of electricity in the USA

Coal

Oil

Nuclear

Solar

Tidal power can only be generated

In locations with high radioactivity

If there is a technological breakthrough

During the day

In locations with a large difference between high and low tides

Put the items below in the correct sequence for the generation of electricity using the wind
W – Electricity is transferred to the grid
X – Wind turns the wind turbine blade
Y – The gearbox transfers mechanical energy to the generator
Z – Generator converts mechanical energy into electrical energy

X-Y-Z-W

X-Y-W-Z

W-X-Y-Z

X-Z-Y-W

One of the main reasons we do not use photovoltaic cells to generate all our electricity is

They cannot be connected to the electrical grid

They do not produce as much electricity during the night hours

They do not produce as much CO2 as other energy sources do

They have no moving parts

A sample of radioactive waste has a half-life of 20 years and an activity level of 2 curies. After how many years will the activity level of this sample be 0.25 curie? (REMEMBER EVERY 1/2 life Divide by 2!)

20 years

40 years

60 years

80 years

Also called subsistence energy sources, people gather this energy source for home use in many less developed countires?

Oil

Coal

Biomass

Nuclear

A positive of using natural gas as a fuel instead of than oil, is that natural gas

Costs less because most reserves are in the United States

Contributes less to global warming because it does not release CO2 when it burns

Burns more completely so it is less impactful as an air pollutant

Is a by-product of photosynthesis therefore is more abundant

A school is trying to switch to renewable energy to power its area. They decided on photovoltaic panels in the nearby desert. An APES class hypothesized that the shade from the newly installed solar panels will decrease the population of creosote bush, a native desert plant in the area. Before construction begins, what experimental data should the class collect in order to eventually test the hypothesis?

The amount of direct sunlight received by creosote bush in the desert area (in kWh/m2) during a 12-month period

The rate of increase in atmospheric CO2 worldwide (in ppm) that occurs in the 12-month period prior to the start of construction

The rate of wind-caused soil erosion (in kg/yr) near solar panels at a similar desert location where creosote bush grows

Average noise levels (in decibels) at a construction site, compared to average noise levels in the desert 20 km away from the construction site

The half-life of a radioactive substance with the decay rate shown is closest to

5 seconds

7 seconds

14 seconds

18 seconds

Passive solar heating can best be describe as

It is effective only during the summer months.

It is based in part on the principle of the greenhouse effect.

It is not efficient because it cannot produce high-quality energy.

It is not used to heat commercial buildings.

How can a government encourage more energy efficiency?

Increasing government subsidies to keep gasoline prices low

Increasing fuel economy standards for new cars

Increasing the speed limit from 55 to 70 miles per hour

Decreasing the development of public transportation systems

Nuclear power plants use fission in their reactors to create electricity. Which answer is true concerning activities that occur at nuclear power plants?

New nuclear power plants will be built without containment structures, due to the increased insulation in the reactor core.

Thermal energy is converted into mechanical energy and then to electrical energy, as in coal burning power plants.

Regularly scheduled releases of radioactive gases during production are well below the maximum contamination levels set by the EPA (Environmental Protection Agency).

Nuclear production of electricity is much less expensive per kilowatt-hour than production of electricity at a coal-burning or natural- gas-fueled power plant.

Cogeneration is best described as

A trash-to-steam power plant accepts both residential and commercial waste.

A power plant uses both coal and natural gas as fuel.

Industry uses natural gas for manufacturing and uses the waste heat to produce electricity

Several power plants supply the same city with electrical energy.

What are the three major resources that make global commercial energy today?

Solar, wind, and biomass

Coal, oil, and natural gas

Nuclear, hydropower, and photovoltaics

Wood, dung, and charcoal

Which is not an environmental benefit of hydroelectric dams?

Destruction of habitat to create the reservoir

Controlling floods downstream

Storage of water for agriculture

Production of renewable energy

How can countries decrease their greenhouse gas emissions?

Replacing coal-burning power plants with solar farms

Decreasing the number of nuclear power plants

Increasing the use of automobiles

Converting tropical forests to rice paddies

Using the graph above, what inference can you make about energy use?

The use of nuclear energy increased from 1970 to 2010 because of the low cost of constructing nuclear power plants

Electricity production from coal began to decrease in 2008 because of shortages in coal supplies

Electricity production from coal began to decrease in 2008 because of the increasing use of natural gas and renewable energy

The use of nuclear energy increased from 1970 to 2010 because of shortages in coal supplies

Which of the following energy sources is not derived directly or indirectly from solar energy?

Photovoltaic

Geothermal

Hydroelectric

Biomass

A hydrogen fuel cell is best described as

Combining hydrogen and oxygen to create electricity and emit water vapor

Generating energy by creating a flow of electrons in a semiconducting material such as silicon.

Combusting methane to heat water, creating steam that turns a turbine to generate electricity

Converting waste oil from the food industry into ethanol, which is burned as a source of power

Fracking in order to obtain natural gas is a great way to acquire a cheap resource. It also has negative environmental consequences such as

Eutrophication

Desertification

Groundwater contamination

Ozone depletion

Ancient heat from decay of radioactive elements from deep within the Earth

Geothermal

Hydroelectric

Photovoltaics

Biomass

Without conservation, this energy source could cause deforestation

Photovoltaics

Geothermal

Hydroelectric

Biomass

Uses solar photons to knock electrons off a semiconductor to create electricity

Geothermal

Biomass

Hydroelectric

Photovoltaics

Uses the potential energy of stored water from a reservoir to create electricity

Geothermal

Biomass

Photovoltaics

Hydroelectric

When supplies of a particular energy type are limited, it is known as a

Alternative resource

Nondepletable resource

Renewable resource

Nonrenewable resource

Due to the abundance and low cost of this resource, this energy source can provide the greatest amount of electricity in the USA

Coal

Oil

Nuclear

Solar

Tidal power can only be generated

In locations with high radioactivity

If there is a technological breakthrough

During the day

In locations with a large difference between high and low tides

Put the items below in the correct sequence for the generation of electricity using the wind
W – Electricity is transferred to the grid
X – Wind turns the wind turbine blade
Y – The gearbox transfers mechanical energy to the generator
Z – Generator converts mechanical energy into electrical energy

X-Y-Z-W

X-Y-W-Z

W-X-Y-Z

X-Z-Y-W

One of the main reasons we do not use photovoltaic cells to generate all our electricity is

They cannot be connected to the electrical grid

They do not produce as much electricity during the night hours

They do not produce as much CO2 as other energy sources do

They have no moving parts

A sample of radioactive waste has a half-life of 20 years and an activity level of 2 curies. After how many years will the activity level of this sample be 0.25 curie? (REMEMBER EVERY 1/2 life Divide by 2!)

20 years

40 years

60 years

80 years

Also called subsistence energy sources, people gather this energy source for home use in many less developed countires?

Oil

Coal

Biomass

Nuclear

A positive of using natural gas as a fuel instead of than oil, is that natural gas

Costs less because most reserves are in the United States

Contributes less to global warming because it does not release CO2 when it burns

Burns more completely so it is less impactful as an air pollutant

Is a by-product of photosynthesis therefore is more abundant

A school is trying to switch to renewable energy to power its area. They decided on photovoltaic panels in the nearby desert. An APES class hypothesized that the shade from the newly installed solar panels will decrease the population of creosote bush, a native desert plant in the area. Before construction begins, what experimental data should the class collect in order to eventually test the hypothesis?

The amount of direct sunlight received by creosote bush in the desert area (in kWh/m2) during a 12-month period

The rate of increase in atmospheric CO2 worldwide (in ppm) that occurs in the 12-month period prior to the start of construction

The rate of wind-caused soil erosion (in kg/yr) near solar panels at a similar desert location where creosote bush grows

Average noise levels (in decibels) at a construction site, compared to average noise levels in the desert 20 km away from the construction site

The half-life of a radioactive substance with the decay rate shown is closest to

5 seconds

7 seconds

14 seconds

18 seconds

Passive solar heating can best be describe as

It is effective only during the summer months.

It is based in part on the principle of the greenhouse effect.

It is not efficient because it cannot produce high-quality energy.

It is not used to heat commercial buildings.

How can a government encourage more energy efficiency?

Increasing government subsidies to keep gasoline prices low

Increasing fuel economy standards for new cars

Increasing the speed limit from 55 to 70 miles per hour

Decreasing the development of public transportation systems

Nuclear power plants use fission in their reactors to create electricity. Which answer is true concerning activities that occur at nuclear power plants?

New nuclear power plants will be built without containment structures, due to the increased insulation in the reactor core.

Thermal energy is converted into mechanical energy and then to electrical energy, as in coal burning power plants.

Regularly scheduled releases of radioactive gases during production are well below the maximum contamination levels set by the EPA (Environmental Protection Agency).

Nuclear production of electricity is much less expensive per kilowatt-hour than production of electricity at a coal-burning or natural- gas-fueled power plant.

Cogeneration is best described as

A trash-to-steam power plant accepts both residential and commercial waste.

A power plant uses both coal and natural gas as fuel.

Industry uses natural gas for manufacturing and uses the waste heat to produce electricity

Several power plants supply the same city with electrical energy.

What are the three major resources that make global commercial energy today?

Solar, wind, and biomass

Coal, oil, and natural gas

Nuclear, hydropower, and photovoltaics

Wood, dung, and charcoal

Which is not an environmental benefit of hydroelectric dams?

Destruction of habitat to create the reservoir

Controlling floods downstream

Storage of water for agriculture

Production of renewable energy

How can countries decrease their greenhouse gas emissions?

Replacing coal-burning power plants with solar farms

Decreasing the number of nuclear power plants

Increasing the use of automobiles

Converting tropical forests to rice paddies

Using the graph above, what inference can you make about energy use?

The use of nuclear energy increased from 1970 to 2010 because of the low cost of constructing nuclear power plants

Electricity production from coal began to decrease in 2008 because of shortages in coal supplies

Electricity production from coal began to decrease in 2008 because of the increasing use of natural gas and renewable energy

The use of nuclear energy increased from 1970 to 2010 because of shortages in coal supplies

Which of the following energy sources is not derived directly or indirectly from solar energy?

Photovoltaic

Geothermal

Hydroelectric

Biomass

A hydrogen fuel cell is best described as 

Combining hydrogen and oxygen to create electricity and emit water vapor

Generating energy by creating a flow of electrons in a semiconducting material such as silicon.

Combusting methane to heat water, creating steam that turns a turbine to generate electricity

Converting waste oil from the food industry into ethanol, which is burned as a source of power

Fracking in order to obtain natural gas is a great way to acquire a cheap resource. It also has negative environmental consequences such as

Eutrophication

Desertification

Groundwater contamination

Ozone depletion