Radioactivity Unit Test Review

What does this image illustrate?

• Electron Clouds

• Isotopes

• Fission

• Fusion

Tags

NGSS.HS-PS1-8

Energy is released when the nucleus of an atom splits and two smaller atoms are formed. What is the name of this process?

• Fusion

• Fission

• Electrical Current

• Newton's Law

Tags

NGSS.HS-PS1-8

Which statement below could be used as evidence to support the claim that using nuclear energy to produce electricity is better than using fossil fuels?

• Nuclear energy does not produce greenhouse gases that contribute to global warming

• Nuclear energy is cheaper than using fossil fuels

• Radioactive waste can be stored deep underground in order to minimize the risk of exposure to dangerous radiation

• Nuclear energy does not produce harmful pollution

Tags

NGSS.HS-ESS3-2

Which letter represents 0 half-lives?

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Tags

NGSS.HS-PS1-8

Which letter represents 1 half-life?

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Which letter represents 2 half-lives?

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Which letter represents 3 half-lives?

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Tags

NGSS.HS-PS1-8

Look at the image. What is the half-life? Hint: use x-axis to determine this

• 5,700 years

• 11,400 years

• 17,100 years

• 22,800 years

Tags

NGSS.HS-PS1-7

Carbon-14 is a radioactive isotope of carbon with a half-life of 5,730 years. A paleontologist finds fossil that contains 25% of its original amount of carbon -14 atoms. How old is the fossil?

• 5,730 years

• 11,460 years

• 22,920 years

• 45,840 years

Tags

NGSS.HS-PS1-8

Community members concerned about the construction of a new nuclear power plant may argue that people who live near a nuclear power plant have increased exposure to nuclear radiation. Based on the data provided in the diagram, which of the following is the best counter argument?

• There is no need to be concerned because the amount of radiation from a nuclear power plant is tiny compared to natural radiation exposure from cosmic rays and radon gas from the ground

• There is no need to be concerned because artificial radiation is used in medicine so it must be safe

• There is no need to be concerned because people are exposed to more radiation from radon gas from the ground than from the natural radiation in food and drink

• There is no need to be concerned because radiation occurs naturally in buildings, food and drink, and in the ground