APES 6.6 Nuclear Power

The half life of random gas is approximately four days. four weeks after the introduction of radon into a sealed room, the fraction of the original amount remaining is closest to what?

1/128

A sample of radioactive waste has a half-life of 10 years and an activity level of 2 curies. After how many years will the activity level of this sample be 0.25 curie?

30 years

After 200 million years, only 1/16 of the original amount of a particular radioactive waste will remain. The half-life of this radioactive waste is how many million years?

50

What process would provide the energy used to generate electricity at a power plant?

Fission

What gas is released from the exhaust of a nuclear power plant?

Gas Radon

What is considered an advantage of using nuclear power to generate electricity?

Low cost energy

What environmental problems are most often associated with nuclear power?

Radioactive waste such as Uranium mill tailings, spent reactor fuel, and other radioactive waste

What is the primary environmental problem associated with the use of nuclear power to generate electricity>

The disposal of radioactive waste

Compared to a coal-fired power plant that produces the same amount of energy, a nuclear power plant generates more what?

Thermal Pollution

The water used in a nuclear power plant is often released back into a reservoir. What effects could this released water have on the reservoir?

Thermal pollution that makes the water have decreased oxygen levels

What is used as a fuel source for electricity generation in a nuclear power station?

Uranium

what is a disadvantage of using nuclear energy as a source of electricity?

Waste in radioactive and disposal is difficult and expensive, Large scale accidents, Thermal pollution problems

Where in the nuclear power plant did the accidents at Three Mile Island and Chernobyl occurred?

k, Fuel rods*

In contrast to low-level radioactive waste, most high-level radioactive waste is currently

stored at reactor centers