Unit 3 Quiz - Nuclear Science V A

Name: ______________________ Class: _________________ Date: _________

ID: A

PS Unit 3 Major Quiz - Nuclear Science True/False Indicate whether the statement is true or false. ____

1. In fusion reactions the mass of the products is less than the mass of the reactants.

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2. Critical mass is the amount of fissionable material required so that each fission reaction produces approximately one more fission reaction.

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3. Nuclear fusion occurs on stars.

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4. Nuclear fission is initiated when a proton strikes a large nucleus.

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5. The tremendous amounts of destruction caused by nuclear weapons is the only real drawback.

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6. Nuclear fission releases energy, nuclear fusion does not.

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7. Nuclear reactions are used to produce electricty by generating steam that is used to spin a huge magnet.

Multiple Choice Identify the choice that best completes the statement or answers the question. ____

8. Which subatomic particle(s) is (are) involved in nuclear reactions? a. Electrons c. Protons and neutrons b. Protons d. Neutrons

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9.

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Which procoess is illustrated in the diagram above? a. Consolidation c. Fission b. Splicing d. Fusion 10. How does the energy involved in chemical reactions compare to the energy involved in nuclear reactions? a. Chemical reactions involve less energy c. Chemical reactions involve more than nuclear reactions energy than nuclear reactions b. Chemical reactions involve the same d. There is no relationship amount of energy as nuclaer reactions 11. Which subatomic particle(s) is (are) involved in chemical reactions? a. Electrons c. Protons and neutrons b. Neutrons d. Protons 1

Name: ______________________

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ID: A

12.

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13.

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14.

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15.

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16.

Which process is illustrated in the diagram above? a. Fission c. Consolidation b. Splicing d. Fusion Which process occurs when more than one light nuclei (such as hydrogen) fuse, or combine, to form a larger single nucleus (such as helium)? a. Nuclear fission c. Consolidation b. Nuclear fusion d. Splicing The process by which a neutron strikes a large atom, causing it to split and releasing a neutron, which strikes another large atom to split and release a neutron is a. A chain of nuclear events c. The domino effect b. A nuclear series d. A chain reaction A natural substance tagged with a radioactive substance so that natural functioning of the body system can be observed is a. An outline c. Critical mass b. A spike d. A tracer What is the process called when a heavy atom splits into two or more parts? a. Consolidation c. Fission b. Fusion d. Splicing

Short Answer 17. Why is radiation an effective means of destroying cancer cells?

. 18. List three of the five benefits to nuclear power reactors we discussed in class.

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ID: A

PS Unit 3 Major Quiz - Nuclear Science Answer Section TRUE/FALSE 1. 2. 3. 4. 5. 6. 7.

ANS: ANS: ANS: ANS: ANS: ANS: ANS:

T T T F F F T

PTS: PTS: PTS: PTS: PTS: PTS: PTS:

1 1 1 1 1 1 1

PTS: PTS: PTS: PTS: PTS: PTS: PTS: PTS: PTS:

1 1 1 1 1 1 1 1 1

MULTIPLE CHOICE 8. 9. 10. 11. 12. 13. 14. 15. 16.

ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS:

C C A A D B D D C

SHORT ANSWER 17. ANS: They divide rapidly. PTS: 1 18. ANS: • • • • • PTS:

Tremendous amounts of energy from small amounts of fuel No air pollution Can be used anywhere Abundance of fuel Non-reliance of fossil fuel

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