Fission and Fusion Warm-Up, Instruction, Assignment, and Quiz

Complete this equation that represents the process of nuclear fission. A: B:

146 56

Use the periodic table to complete this equation that represents the process of nuclear fusion. A: B: C:

15 8 O

What are the products of a fusion reaction? Check all that apply. lighter atoms energy heavier atoms a neutron a proton

2, 3, & 4

Which are advantages of using nuclear reactors to generate electricity? Check all that apply. Nuclear power produces no hazardous byproducts. Nuclear power has a high output. Nuclear power uses nonharmful fuel. Nuclear power is readily available. Nuclear power produces relatively low carbon dioxide emissions.

2, 4, & 5

Complete this equation that represents the process of nuclear fusion. A: B:

222 86

Use the periodic table to complete this nuclear fission equation. A: B: C:

94 36 Kr

Trudy writes an expression to calculate the mass defect of a carbon-14 nucleus using the symbols in the table. Which expression should Trudy write? (6mp + 8mn) - mc - 14 (8mp + 6mn) - mc - 14 mp + mn - mc - 14 6mp + 8me - mc - 14

A. (6mp + 8mn) - mc - 14

What is the energy equivalent of an object with a mass of 1.83 kg? 1.65 × 1017 J 2.92 × 1017 J 3.10 × 1017 J 5.49 × 1017 J

A. 1.65 × 1017 J

Which statement accurately describes mass-energy equivalence? It includes the idea that mass is a measure of the energy within an object. It states that mass-energy can be created or destroyed. It can be represented using the formula E = m2c. It states that all energy in the universe will be converted to mass.

A. It includes the idea that mass is a measure of the energy within an object.

Why is nuclear energy able to be used for practical purposes? The reactions are controlled to regulate energy output. The reactions are uncontrolled for maximum energy output. All of the products are fed back into the reaction to keep it going. All of the products are immediately removed to inhibit more reactions.

A. The reactions are controlled to regulate energy output.

The process in which the nucleus of an atom splits into two lighter atoms, releasing a large amount of energy, is nuclear ______ Fusion Fission Radiation Energy

B. Fission

How are nuclear reactions used to meet the world's energy needs? Both fusion and fission are used to generate electricity, but more fission reactors than fusion reactors are in use. Fission reactors are used to generate electricity, but fusion is not yet practical enough to be used. Both fusion and fission are used to generate electricity, but more fusion reactors than fission reactors are in use. Fusion reactors are used to generate electricity, but fission is not yet practical enough to be used.

B. Fission reactors are used to generate electricity, but fusion is not yet practical enough to be used.

The diagram shows a model of a nuclear change. Which nuclear process does the model illustrate? nuclear fission, because nuclei combine nuclear fission, because a nucleus breaks apart nuclear fusion, because nuclei combine nuclear fusion, because a nucleus breaks apart

B. nuclear fission, because a nucleus breaks apart

What is mass defect? the difference between the mass of the protons and the mass of the neutrons in an atom the difference between the mass of the nucleus in an atom and the total mass of individual nucleons the difference between the mass of the nucleus of an atom before and after a nuclear reaction

B. the difference between the mass of the nucleus in an atom and the total mass of individual nucleons

Which statement correctly describes mass-energy equivalence? All energy in the universe will be converted to an equivalent amount of mass. Mass can decrease in nuclear changes without the production of energy. All energy in the universe is a result of mass being converted into energy. A large amount of mass is equivalent to a small amount of energy.

C. All energy in the universe is a result of mass being converted into energy.

Which statement describes why energy is released in a nuclear fusion reaction based on mass-energy equivalence? For large nuclei, the mass of the original nucleus is greater than the mass of the products. For large nuclei, the mass of the original nucleus is less than the mass of the products. For small nuclei, the binding energy of the lighter nuclei is greater than the binding energy of the heavier nucleus. For small nuclei, the binding energy of the lighter nuclei is less than the binding energy of the heavier nucleus.

C. For small nuclei, the binding energy of the lighter nuclei is greater than the binding energy of the heavier nucleus.

Why is fusion nuclear energy currently not widely used as a source of electricity? Fusion reactions have not yet been achieved. Fusion reactions cannot be controlled. Fusion reactions require very high temperatures and pressure. Fusion reaction energy cannot be converted into electricity.

C. Fusion reactions require very high temperatures and pressure.

What are the starting materials for nuclear fission? two small nuclei two large nuclei a neutron and a large nucleus a neutron and a small nucleus

C. a neutron and a large nucleus

What is the energy equivalent of an object with a mass of 2.5 kg? 5.5 × 108 J 7.5 × 108 J 3.6 × 1016 J 2.25 × 1017 J

D. 2.25 × 1017 J

What is the energy equivalent of an object with a mass of 4.1 kg? 1.2 × 109 J 1.4 × 1035 J 3.5 × 1018 J 3.7 × 1017 J

D. 3.7 × 1017 J

Gazala makes a graphic organizer to compare nuclear fission and nuclear fusion. Which labels belong in the regions marked X and Y? X: Provides household electricity Y: Has rods containing uranium X: Provides household electricity Y: Requires high temperature and pressure X: Converts mass into energy Y: Does not produce usable amounts of energy X: Converts mass into energy Y: Is controlled by neutron absorption

D. X: Converts mass into energy Y: Is controlled by neutron absorption

A power plant needs to slow down the fission reactions in its nuclear reactor. In which direction should the uranium-containing rods in the diagram be moved? left right up down

D. down

Which statement describes why energy is released in a nuclear fusion reaction based on mass-energy equivalence? For large nuclei, the mass of the original nucleus is greater than the mass of the products. For large nuclei, the mass of the original nucleus is less than the mass of the products. For small nuclei, the binding energy of the lighter nuclei is greater than the binding energy of the heavier nucleus. For small nuclei, the binding energy of the lighter nuclei is less than the binding energy of the heavier nucleus.

For small nuclei, the binding energy of the lighter nuclei is greater than the binding energy of the heavier nucleus.

Explain why nuclear fission and nuclear fusion release large amounts of energy.

In nuclear fission, the mass of the original nucleus is greater than the mass of the products. The extra mass is converted to energy. In nuclear fusion, the total binding energy of the lighter nuclei is greater than the binding energy of the heavier nucleus. Extra energy is released during the reaction.

sort the tiles into the appropriate categories nuclear fission both nuclear fusion

Nuclear Fission: splits the nucleus produces two lighter atoms Both: releases a lot of energy Nuclear Fusion: combines two atoms produces a heavier atom

Describe the steps that occur in the process of fission.

Nuclear fission begins when a neutron hits the nucleus of an atom. The nucleus splits in two and releases thermal energy and more neutrons. The neutrons hit the nuclei of more atoms, splitting them and releasing more energy and neutrons.

Fill in the terms that accurately complete the statements. The nucleus contains positively charged particles called and neutral particles called , which are bound together by the strong nuclear force. The electron cloud contains negatively charged particles, which participate in reactions.

protons neutrons chemical