Power Generation

At a nuclear or fossil fuel power plants, these are referred to as __________________.

• cooling towers

• reactor towers

• smoke stacks

• vapor chambers

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NGSS.HS-PS3-4

The process of generating nuclear power is called ___

• nuclear alpha decay

• nuclear fusion

• nuclear fission

• nuclear fuel enrichment

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NGSS.HS-PS1-8

What is the function of a turbine?

• When it spins, it makes sparks, inducting electricity.

• It transfers the energy from the flow of steam or water to the generator.

• It speeds up the steam or water to keep it at a steady pace.

• It controls the steam or water so it can be pumped around in a cycle.

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NGSS.HS-PS3-3

When moving neutrons hit the nuclei of certain other atoms thereby causing them to change, and this happens repeatedly, it is said to be a _______________________

• nuclear chain reaction

• alpha radiation

• nuclear half-life

• control rod

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NGSS.HS-PS1-8

What is the main environmental concern associated with coal-fired power stations?

• They produce a lot of noise

• They emit greenhouse gases

• They are expensive to build

• They require a lot of water

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What does a generator in hydroelectricity do?

• It spins when the water passes through it.

• It moves the water from a higher elevation to a lower elevation.

• It helps the movement of fish to pass safely through the dam.

• It electromagnetically induces electricity.

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NGSS.HS-PS3-3

The efficiency of coal fired power plants is typically

• 10 - 20%

• 30 - 40%

• 50 - 60%

• 70 - 80%

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The location of the largest amount of degraded energy in a fossil fuel or nuclear power plant is

• in the heat exchanger

• in the turbines

• in the generator

• in the condenser

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Controlled chain reactions in a nuclear reactor is achieved using . . .

• a moderator.

• control rods.

• fuel pellets.

• heat exchanger.

Pumped water storage is a great solution for

• generating power where water is scarce.

• storing surplus solar and wind power for later use.

• generating power in a flat location.

• eliminating fossil fuel power plants.

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