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Sound is one example of wave motion and the ability to hear sound is based on the principle of resonance. In this chapter’s activities, you will learn about standing waves, resonance, and an interesting wave phenomenon…
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Color theory is the aspect of physics that can explain the colors on your computer screen or in your printer. Visible light can be split into different wavelength regions that are called colors. The color of an object…
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Thermodynamics is a very important part of physical science. When discussing thermodynamics, we can explore heat, thermal expansion, and insulation, as well as changes in state, thermal equilibrium, and thermal energy.…
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Water can be used to help become familiar with the concepts of density and buoyancy. For example, lifting rocks from the bottom of a lake is easier than moving them on the beach. While in the water, the buoyant force…
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In order to discuss mechanical interactions, we need to understand forces and motion. In physical science, we can make use of all three of Newton’s laws of motion in a variety of situations. Energy analysis encompasses…
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This chapter features gadgets and gizmos that make science look like magic. You don’t have to be a magician to perform these tricks—all you need is physics. Each student can pick a gizmo and prepare a performance for…
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In everyday life we often talk about pressure—high pressure and low pressure. We speak of the pressure in car tires, atmospheric pressure, pressure-sealed containers, pressure chambers, and so on. These are just a few…
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Thermodynamics is the physics of heat, mechanical energy or work, and the conversion of one into the other. All systems follow the laws of thermodynamics and since almost all energy production is based on thermodynamics…
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Energy is an essential part of all branches of physics. In mechanics, energy appears as both potential and kinetic energy. In this chapter, the experiments examine the conservation of energy and how energy can change…
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Color theory is an area of physics that can explain how the appearance of colors changes when colors are mixed, for example on a computer screen or with a printing press. Visible light can be divided into different…
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Resonance—a system’s tendency to oscillate at greater amplitudes at certain frequencies—is a common phenomenon in physics. The explorations in this chapter will define how resonance occurs. Teacher background…
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Buoyancy is a phenomenon that occurs not only in water but also in the atmosphere. The effect of buoyancy is easily felt in water. A hot air balloon rises up in the air because of a buoyant force from the air around it…
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The concept of angular momentum can be related to linear momentum. The difference is that while linear momentum occurs with motion in a straight line, angular momentum applies to circular motion. The observations in…
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Magnetism is a well known physics phenomenon that is used, for example, in computers for magnetic recording, in Maglev trains, or for holding notes on a refrigerator door. Magnetism is a phenomenon in which the magnetic…
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Electromagnetic induction is the basis for producing energy in our society. This phenomenon is used in wind generators, hydroelectric generators, and nuclear power plants, as well as in metal detectors, induction brakes…
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