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Physical science is a term that encompasses several branches of science, including astronomy, chemistry, earth science and physics. Learn about physical science with information from a science teacher in this free video series on science and energy.
There are 28 videos in this series:
Granite is a common rock that is often used in building materials and is made of quartz, feldspar and mica. Find out how granite can produce crystals with information from a science teacher in this free video on physical science lessons.
Electric generators work by moving an alternating current to an output. Find out what connects coils to electric outputs with information from a science teacher in this free video on physical science lessons.
Piezoresistive pressure sensors, or crystals, work by generating currents and detecting deformations in structures. Discover how architects use piezoresistive crystals with information from a science teacher in this free video on physical science lessons.
Fossils form when the remains of animals are trapped between rock layers and become a part of the rock sequence. Discover how scientists can tell how old a fossil is with information from a science teacher in this free video on physical science lessons.
Electromagnets work by using electricity to create magnetism, and they also use a coil to create a north and south end. Discover how electromagnets are different than permanent magnets with information from a science teacher in this free video on physical science lessons.
Magnets can attract and repel by creating fields in which there will always be movement to reduce the field. Discover how repelling magnets will force movement towards the center with information from a science teacher in this free video on physical science lessons.
A thermometer works on the principle of the expansion of liquid, which depends on temperature. Find out how thermometers are based around standard temperatures with information from a science teacher in this free video on physical science lessons.
Windmills work by having blades that move and cause a rotating generator to form electricity. Discover how windmills have changed since the days of windmills that pumped water with information from a science teacher in this free video on physical science lessons.
A torch works through a conducting part, a reflecting part and a circuit made up of a set of cells. Find out how light is reflected in a torch with information from a science teacher in this free video on physical science lessons.
Henri Becquerel was the person who first discovered the effect that are now known as radioactivity. Learn about Pierre and Marie Curie and their association with radioactivity with information from a science teacher in this free video on physical science lessons.
Renewable forms of energy, such as geothermal, hydro, wind and solar energies, can be used to replace fossil fuels, such as oil, gas and coal. Discover how biomass is used as a renewable source of energy with information from a science teacher in this free video on physical science lessons.
Light travels both in straight lines and through reflection, which is a process in which light enters a prism and bends. Discover how light bends when going from one material to another with information from a science teacher in this free video on physical science lessons.
Nuclear energy is a non-renewable fossil fuel that can be obtained by mining and refining uranium. Discover how refined uranium in a nuclear reactor creates nuclear energy with information from a science teacher in this free video on physical science lessons.
Wind turbines generate electricity through the use of an electric generator that is run by a gear box. Find out how electricity moves down a wind turbine tower and into an electric grid with information from a science teacher in this free video on physical science lessons.
Nuclear energy creates electricity through fuel rods that are placed into a moderator to produce heat that is taken out by a heat exchanger. Discover how nuclear reactors are basically used to create heat with information from a science teacher in this free video on physical science lessons.
A cathode ray tube consists of an electron gun, focusing coils, and X and Y plates. Learn how a sawtooth works in a cathode ray tube with information from a science teacher in this free video on physical science lessons.
Consumers can use nuclear energy because electrical energy may come from a nuclear power station. Find out how much electrical energy is created by nuclear power stations with information from a science teacher in this free video on physical science lessons.
A general difference between rocks and minerals is that minerals are chemical substances, while rocks are made from volcanoes and bodies of water. Discover how granite and igneous rocks are formed with information from a science teacher in this free video on physical science lessons.
Solar energy is a renewable energy that comes from silicon chips which come from silicon dioxide, a substance found in all rocks. Find out how electric currents come out of silicon chips with information from a science teacher in this free video on physical science lessons.
Energy that comes from fuels which are on pace to run out in 100 years must be conserved in favor of the use of renewable energy sources. Find out how green energy comes from the combined use and conservation of various energy sources with information from a science teacher in this free video on physical science lessons.
Green energy fuels are produced in a green manner, and these include biomass. Discover how the production of heat can result in the generation of electricity with information from a science teacher in this free video on physical science lessons.
Green energy credits are bought so that someone can have the privilege of using non-green sources of energy. Discover how people can buy green credits to use carbon dioxide with information from a science teacher in this free video on physical science lessons.
Five forms of green energy include geothermal energy, biomass energy, hydro energy, wind energy and solar energy. Discover how the forms of green energy are created and used with information from a science teacher in this free video on physical science lessons.
Green energy isn't free, such as when wells need to be dug to help the production of geothermal energy. Find out how the replacement of solar cells adds to the cost of green energy with information from a science teacher in this free video on physical science lessons.
Protons are one of the three fundamental particles, and they possess a positive charge. Discover how protons help to determine what a material is with information from a science teacher in this free video on physical science lessons.
Physical science is an encompassing term for the branches of natural science and science that study non-living systems, in contrast to the biological sciences. The foundations of the physical sciences rests upon key concepts and theories, each of which explains and/or models a particular aspect of the behavior of nature. Physical science can be divided into astronomy, chemistry, earth science and physics. In this free video series, a science teacher provides lessons on physical science and energy sources. Find out how electric generators work, how fossils form and how radioactivity was discovered. Learn about solar energy, green energy fuels and turning nuclear energy into electricity. Improve personal knowledge of physical science with this information.
Steve Jones Steve Jones is an experienced mathematics and science teacher. He also has many years experience in the field of public speaking and debate, and he is an organizer of debate competitions for high school students. He is the chairman of the Hungarian branch of the English-Speaking Union, which is an international educational charity founded in 1918 to promote international understanding and friendship through the use of the English language.dkdk
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