Name: ______________________ Class: _________________ Date: _________ ID: A

1

PS Unit 3 Major Quiz - Nuclear Science

True/FalseIndicate whether the statement is true or false.

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

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

____ 3. Nuclear fusion occurs on stars.____ 4. Nuclear fission is initiated when a proton strikes a large nucleus.

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

____ 6. Nuclear fission releases energy, nuclear fusion does not.____ 7. Nuclear reactions are used to produce electricty by generating steam that is used to spin a huge

magnet.

Multiple ChoiceIdentify 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 neutronsb. Protons d. Neutrons

____ 9. Which procoess is illustrated in the diagram above?a. Consolidation c. Fissionb. 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

than nuclear reactionsc. Chemical reactions involve more

energy than nuclear reactionsb. Chemical reactions involve the same

amount of energy as nuclaer reactionsd. There is no relationship

____ 11. Which subatomic particle(s) is (are) involved in chemical reactions?a. Electrons c. Protons and neutronsb. Neutrons d. Protons

Name: ______________________ ID: A

2

____ 12. Which process is illustrated in the diagram above?a. Fission c. Consolidationb. Splicing d. Fusion

____ 13. 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. Consolidationb. Nuclear fusion d. Splicing

____ 14. 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 isa. A chain of nuclear events c. The domino effectb. A nuclear series d. A chain reaction

____ 15. A natural substance tagged with a radioactive substance so that natural functioning of the body system can be observed isa. An outline c. Critical massb. A spike d. A tracer

____ 16. What is the process called when a heavy atom splits into two or more parts?a. Consolidation c. Fissionb. 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.

.

ID: A

1

PS Unit 3 Major Quiz - Nuclear ScienceAnswer Section

TRUE/FALSE

1. ANS: T PTS: 1 2. ANS: T PTS: 1 3. ANS: T PTS: 1 4. ANS: F PTS: 1 5. ANS: F PTS: 1 6. ANS: F PTS: 1 7. ANS: T PTS: 1

MULTIPLE CHOICE

8. ANS: C PTS: 1 9. ANS: C PTS: 1 10. ANS: A PTS: 1 11. ANS: A PTS: 1 12. ANS: D PTS: 1 13. ANS: B PTS: 1 14. ANS: D PTS: 1 15. ANS: D PTS: 1 16. ANS: C PTS: 1

SHORT ANSWER

17. ANS: They divide rapidly.

PTS: 1 18. ANS:

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

PTS: 1