Physics - Key Stage 4 - Whiteboard presentation - Multimedia lesson

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Nuclear energy
Subject: Physics
Level: Key Stage 4
Resource type: Whiteboard presentation
Teaching type: Multimedia lesson

Description

At the end of this activity, students should be able to:
– state the conditions that need to be satisfied for a fusion reaction to occur
– describe the structure and operation of a nuclear reactor
– explain the advantages and disadvantages of nuclear power engineering in comparison with conventional power engineering.

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Resources Structure Key Stage 4 Physics XVIII. Nuclear physics 104. Nuclear energy Exam Specifications Key Stage 4 AQA GCSE Science A (4461) Physics II. Physics 1b - Radiation and the Universe 2. What are the uses and dangers of emissions from radioactive substances? to evaluate the possible hazards associated with the use of different types of nuclear radiation to evaluate measures that can be taken to reduce exposure to nuclear radiations to evaluate the appropriateness of radioactive sources for particular uses, including as tracers, in terms of the type(s) of radiation emitted and their half-lives. The basic structure of an atom is a small central nucleus composed of protons and neutrons surrounded by electrons. The atoms of an element always have the same number of protons, but have a different number of neutrons for each isotope. Some substances give out radiation from the nuclei of their atoms all the time, whatever is done to them. These substances are said to be radioactive. Identification of an alpha particle as a helium nucleus, a beta particle as an electron from the nucleus and gamma radiation as electromagnetic radiation. Properties of the alpha, beta and gamma radiations limited to their relative ionising power, their penetration through materials and their range in air. Alpha and beta radiations are deflected by both electric and magnetic fields but gamma radiation is not. The uses of and the dangers associated with each type of nuclear radiation. The half-life of a radioactive isotope is defined as the time it takes for the number of nuclei of the isotope in a sample to halve or the time it takes for the count rate from a sample containing the isotope to fall to half its initial level. AQA GCSE Physics (4451) III. Physics 1a 13. How should we generate the electricity we need? Common energy sources include coal, oil and gas, which are burned to produce heat and uranium/plutonium, in which nuclear fission produces heat. IV. Physics 1b 15. What are the uses and dangers of emissions from radioactive substances? The uses of and the dangers associated with each type of nuclear radiation. V. Physics 2 26. What are nuclear fission and nuclear fusion? Nuclear fusion is the joining of two atomic nuclei to form a larger one. Nuclear fusion is the process by which energy is released in stars. to sketch a labelled diagram to illustrate how a chain reaction may occur. There are two fissionable substances in common use in nuclear reactors, uranium 235 and plutonium 239. Nuclear fission is the splitting of an atomic nucleus. For fission to occur the uranium 235 or plutonium 239 nucleus must first absorb a neutron The nucleus undergoing fission splits into two smaller nuclei and 2 or 3 neutrons and energy is released. The neutrons may go on to start a chain reaction. AQA GCSE Physics (4451) I. Physics 2 10. What are nuclear fission and nuclear fusion? Nuclear fission is the splitting of an atomic nucleus. For fission to occur the uranium 235 or plutonium 239 nucleus must first absorb a neutron The nucleus undergoing fission splits into two smaller nuclei and 2 or 3 neutrons and energy is released. The neutrons may go on to start a chain reaction. Nuclear fusion is the joining of two atomic nuclei to form a larger one Nuclear fusion is the process by which energy is released in stars. to sketch a labelled diagram to illustrate how a chain reaction may occur. There are two fissionable substances in common use in nuclear reactors, uranium 235 and plutonium 239.

Copyright
YDP SA

Keywords
reaction, energy, power, nuclear, fission, engineering, reactor, neutron, conventional, nuclear energy

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Nuclear energy

Type: Whiteboard presentation

School licence till: 23/05/2013

Price: 5.00 GBP

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This resource belongs to the following Packs:

Physics – Key Stage 4

School licence till: 23/05/2013

Price: 349.00 GBP (excl. VAT)

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