If a 3.0 picogram (pg) sample of curium-245 has a half-life of 8500 years, which conclusion can be drawn?

The curium-245 sample will have a mass of about 1.5 pg after 8500 years.

The curium-245 sample must have an age of at least 8500 years.

The curium-245 sample must have an age of less than 8500 years.

The curium-245 sample will have a mass of about 6.0 pg after 8500 years.

What is the ideal location for a radioactive waste storage facility?

in an area that already has a lot of background radiation

in an area that has a lot of earthquakes

in an area with a lot of people

On March 11, 2011, radioactive isotopes were released into the environment during the nuclear accident at the Fukushima nuclear reactor in Japan. One of the isotopes released was cesium-137. The radioactive decay of cesium-137 is shown in the graph. The graph supports which statement about nuclear power?

Nuclear radiation can stay in the environment for decades because it can take a long time to decay.

Wastes from all types of energy sources decay, like nuclear radiation.

Nuclear radiation can be disposed of anywhere because it naturally decays.

It is important for engineers to dispose of nuclear waste quickly so that it can begin to decay.

The diagram shows a nuclear waste classification scheme. Which statements does this diagram support? Select all that apply.

E. Nuclear waste disposal requires different disposal locations depending upon the activity content of the waste.

A. Nuclear waste must be classified and then disposed of properly.

B. Nuclear waste cannot be classified and then disposed of properly.

C. Nuclear waste does not need to be classified and then disposed of properly.

D. Nuclear waste disposal requires the same disposal location regardless of the activity content of the waste.

Which of the following describes an atomic property that makes some atoms useful for nuclear medicine applications and nuclear power generation?

Isotopes of an atom differ in the number of neutrons they contain. Some isotopes are unstable, and these are used in nuclear medicine and the generation of nuclear power.

Isotopes of an atom differ in the number of electrons they contain. Some isotopes are unstable, and these are used in nuclear medicine and the generation of nuclear power.

Isotopes of an atom differ in the number of electrons they contain. Some isotopes are stable, and these are used in nuclear medicine and the generation of nuclear power.

Isotopes of an atom differ in the number of neutrons they contain. Some isotopes are stable, and these are used in nuclear medicine and the generation of nuclear power.

Which statements about nuclear energy does this diagram support? Select all that apply.

C. One of the problems with nuclear energy is the difficulty of nuclear waste disposal.

E. One of the problems with nuclear energy is that nuclear waste can leak out of canisters.

D. One of the benefits of nuclear energy is that nuclear waste can leak out of canisters.

A. One of the problems with nuclear energy is containing the fission reaction.

B. One of the benefits of nuclear energy is the ease of nuclear waste disposal.

During nuclear fusion, energy is generated as

some of the mass is converted into energy.

the nucleus of a large atom is broken into smaller atoms.

Nuclear reactors convert heat energy into mechanical energy, used to generate electrical energy, by

harnessing electromagnetic discharge.

using an electron transfer system.

What would most likely happen if the United States increased its use of nuclear power and continued using the same amount of geothermal, solar, wind, hydro, and biomass powers?

The United States would become less dependent on energies that emit greenhouse gases.

The United States would become more dependent on fossil fuels.

The United States would become more dependent on renewable energy.

The United States would become less dependent on energies that create dangerous waste.

STUDY GUIDE: Unit 5 - Radioactivity

Authored by Allison Yeomans

Science

10th Grade

NGSS covered

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MATCH QUESTION

30 sec • 1 pt

Match the following diagrams to the correct type of reaction and the overall energy change that occurs.

The reaction is fusion.

In this reaction, energy is absorbed.

In this reaction, energy is released.

The reaction is fission.

Tags

NGSS.HS-PS1-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which type of reaction is shown in the diagram?

A. fusion, because the reaction released energy

B. fission, because the reaction absorbed energy

C. fusion, because the reaction formed heavier nuclei

D. fission, because the reaction formed lighter nuclei

Tags

NGSS.HS-PS1-8

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following BEST describes what occurs in a fusion reaction?

Two low mass nuclei are joined to form one nucleus and gives off energy.

A single nucleus divides into two or more nuclei and gives off energy.

Electrons are shared between the nuclei.

A chemical reaction occurs between the nuclei.

Tags

NGSS.HS-PS1-8

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

low temperature and high pressure

high temperature and low pressure

low temperature and low pressure

high temperature and high pressure

Tags

NGSS.HS-PS1-8

NGSS.HS-ESS1-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do nuclear fusion reactions differ from nuclear fission reactions?

Nuclear fusion reactions convert all energy into mass.

Nuclear fusion reactions follow the law of conservation of matter.

Nuclear fusion reactions form lighter isotopes from heavier isotopes.

Nuclear fusion reactions form heavier isotopes from lighter isotopes.

Tags

NGSS.HS-PS1-8

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A nuclear fission reaction and a nuclear fusion reaction are similar because both reactions

form light nuclei from heavy nuclei.

form heavy nuclei from light nuclei.

absorb a large amount of energy.

release a large amount of energy.

Tags

NGSS.HS-PS1-8

MULTIPLE SELECT QUESTION

30 sec • 1 pt

The energy released during _ reactions is much greater than the energy released during _ reactions.

endothermic; exothermic

endothermic; chemical

exothermic; nuclear

nuclear; chemical

Tags

NGSS.HS-PS1-4

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STUDY GUIDE: Unit 5 - Radioactivity

Match the following diagrams to the correct type of reaction and the overall energy change that occurs.

Which type of reaction is shown in the diagram?

Which of the following BEST describes what occurs in a fusion reaction?

How do nuclear fusion reactions differ from nuclear fission reactions?

A nuclear fission reaction and a nuclear fusion reaction are similar because both reactions

The energy released during _ reactions is much greater than the energy released during _ reactions.

Which nuclear equation represents a fusion reaction?

Radioactive elements each have their own predictable rate of decay, or (a) , which is measured by the amount of time it takes (b) of the radioactive atoms to (c) .

It takes (a) half-lives for a radioactive substance to decay until only one quarter of the original substance remains.

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STUDY GUIDE: Unit 5 - Radioactivity

Match the following diagrams to the correct type of reaction and the overall energy change that occurs.

Which type of reaction is shown in the diagram?

Which of the following BEST describes what occurs in a fusion reaction?

How do nuclear fusion reactions differ from nuclear fission reactions?

A nuclear fission reaction and a nuclear fusion reaction are similar because both reactions

The energy released during _____ reactions is much greater than the energy released during _____ reactions.

Which nuclear equation represents a fusion reaction?

Radioactive elements each have their own predictable rate of decay, or​ (a) , which is measured by the amount of time it takes ​ (b) of the radioactive atoms to ​ (c) .

It takes (a) half-lives for a radioactive substance to decay until only one quarter of the original substance remains.

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science

The energy released during _ reactions is much greater than the energy released during _ reactions.

Radioactive elements each have their own predictable rate of decay, or (a) , which is measured by the amount of time it takes (b) of the radioactive atoms to (c) .