"Nuclear Energy" Energy and Sustainable Development PPT Download

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"Nuclear Energy" Energy and Sustainable Development PPT Download

Part One: Guidance Design

Learning Points Nuclear Energy

Question 1: Protons and neutrons are tightly bound together by the strong nuclear force. Once the nuclei of larger masses ________ or the nuclei of smaller masses _________ each other, it is possible to release amazing energy. This is nuclear energy. .

Question 2: As shown in Figure 22-2-2, Figure A and Figure B are two ways to release nuclear energy.

(1) Picture A is a ________ reaction, which is the principle of ______ change. This reaction can be controlled in a nuclear reactor; if not controlled, it is the principle of making ________ bombs.

(2) Picture B is a schematic diagram of the ______ variable (also called ____________), which cannot be controlled manually. It is the principle of making ______ bombs.

Question 3: Combined with the schematic diagram of the nuclear power plant work flow shown in Figure 22-2-3, describe the energy conversion situation when the nuclear power plant generates electricity.

[ Answer , get electrical energy.

Nuclear energy PPT, part 2: summary of frequent exams

Type 1: Understand the composition of atoms

Example 1 At the turn of the 19th century and the 20th century, the discovery of radiation phenomena and electrons in physics not only brought people's attention to the inside of atoms, but also further drove humans to actively explore the internal composition of atomic nuclei. In a discussion about atoms and nuclei, students in a certain study group made the following four statements:

(1) Atoms are composed of a nucleus in the center and electrons outside the nucleus;

(2) Negatively charged electrons move around the nucleus at high speed in the space outside the nucleus;

(3) All the positive charge and all the mass of the atom are concentrated in the nucleus;

(4) The nucleus is composed of protons and neutrons. The number of protons must not be equal to the number of neutrons.

Which of the following combinations is correct ( )

A． (1) (2)B. (2) (4)

C. (1) (3)D. (3) (4)

Type 2 Nuclear energy

Example 2 Among the following statements about nuclear energy, which one is correct ()

A． Nuclear energy, like coal and oil, is a conventional energy source, not a new energy source

B． Nuclear energy is a renewable energy source like solar energy, wind energy and hydro energy.

C. Fission and fusion of atomic nuclei release huge amounts of energy. This is nuclear energy.

D. A hydrogen bomb explosion is the result of a chain reaction of nuclear fission

Type 3 Utilization of Nuclear Energy

Example 3 (Multiple choice) Regarding nuclear energy, which of the following statements is incorrect ( )

A． At present, nuclear power plants use nuclear energy through fusion reactions.

B． The chain reaction that occurs in a nuclear reactor is controlled

C. Nuclear energy is released when atomic nuclei split or coalesce

D. Nuclear waste will not cause environmental pollution and can be disposed of at will.

[Commentary by Famous Teachers]Nuclear power plants use the nuclear energy released when uranium nuclei fission to generate electricity. The core equipment of a nuclear power plant is a nuclear reactor, which releases energy through controlled fission (chain reaction). Due to nuclear radiation, the development and utilization of nuclear energy is somewhat controversial.

Nuclear Energy PPT, Part 3: Class Feedback

1. Figure 18-1 is a schematic diagram of the internal structure of an atom. Atoms are composed of a nucleus and negatively charged ________, and the nucleus is composed of positively charged protons and uncharged ________.

2. The development of nuclear energy is one of the effective ways to solve the energy crisis. Bombarding a relatively large atomic nucleus with neutrons turns it into two nuclei of medium mass and releases huge energy at the same time. This process belongs to ________. Certain atomic nuclei with very small masses can combine to form new nuclei at ultra-high temperatures, and at the same time release greater energy. This process belongs to ________. (Choose "fusion" or "fission" for both)

3. What occurs in the nuclear reactor of a nuclear power plant is the ________ (optional "fusion" or "fission") reaction of the atomic nucleus; the nuclear power plant ultimately converts nuclear energy into ________ energy, which belongs to ________ (optional "one" or "two") ) secondary energy.

4. Nuclear power plants use nuclear energy to generate electricity. Its core equipment is the nuclear reactor. Nuclear power plants and atomic bombs both use chain reactions. The chain reaction that occurs in the nuclear reactor of a nuclear power plant is __________, and the chain reaction that occurs when an atomic bomb explodes is __________.

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For more information about the "Energy and Sustainable Development Nuclear Energy" PPT courseware, please click the Energy and Sustainable Development ppt Nuclear Energy ppt tag.

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Update Time: 2024-09-09

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