Chapter 9.1 Notes
... at the speed of light and are called ______________________________________________. 5. The energy is contained in the electric and magnetic field or in the electromagnetic wave and this energy is called ________________________________________________. 6. Electromagnetic waves travel at ___________ ...
... at the speed of light and are called ______________________________________________. 5. The energy is contained in the electric and magnetic field or in the electromagnetic wave and this energy is called ________________________________________________. 6. Electromagnetic waves travel at ___________ ...
Course Review 2
... of the cannon at a velocity of 20 m/s the mechanical energy his body will possess at any time during the flight will be about: ...
... of the cannon at a velocity of 20 m/s the mechanical energy his body will possess at any time during the flight will be about: ...
MULTIPLE CHOICE. Choose the one alternative that best
... 45) Consider the interference colors seen in a film of gasoline on a wet street. The function of the water is to provide a A) means of slowing the rapid evaporation of gasoline. B) chemical bond with the gasoline. C) means of spreading the gasoline into a thin film. D) second reflecting surface. E) ...
... 45) Consider the interference colors seen in a film of gasoline on a wet street. The function of the water is to provide a A) means of slowing the rapid evaporation of gasoline. B) chemical bond with the gasoline. C) means of spreading the gasoline into a thin film. D) second reflecting surface. E) ...
CMock exam IV paper 2
... 1M for starting from (all ice cubes have melted), 1A for approaching room temperature 2. (a) Temperature (of gas) 1M Mass of air/gas Or number of atoms/molecules/moles of air/gas 1M (b) Assumption: idea that volume occupied by trapped air proportional to length of air in tube (i.e. volume = cross-se ...
... 1M for starting from (all ice cubes have melted), 1A for approaching room temperature 2. (a) Temperature (of gas) 1M Mass of air/gas Or number of atoms/molecules/moles of air/gas 1M (b) Assumption: idea that volume occupied by trapped air proportional to length of air in tube (i.e. volume = cross-se ...
Wavelength
In physics, the wavelength of a sinusoidal wave is the spatial period of the wave—the distance over which the wave's shape repeats, and the inverse of the spatial frequency. It is usually determined by considering the distance between consecutive corresponding points of the same phase, such as crests, troughs, or zero crossings and is a characteristic of both traveling waves and standing waves, as well as other spatial wave patterns. Wavelength is commonly designated by the Greek letter lambda (λ). The concept can also be applied to periodic waves of non-sinusoidal shape. The term wavelength is also sometimes applied to modulated waves, and to the sinusoidal envelopes of modulated waves or waves formed by interference of several sinusoids.Assuming a sinusoidal wave moving at a fixed wave speed, wavelength is inversely proportional to frequency of the wave: waves with higher frequencies have shorter wavelengths, and lower frequencies have longer wavelengths.Wavelength depends on the medium (for example, vacuum, air, or water) that a wave travels through.Examples of wave-like phenomena are sound waves, light, and water waves. A sound wave is a variation in air pressure, while in light and other electromagnetic radiation the strength of the electric and the magnetic field vary. Water waves are variations in the height of a body of water. In a crystal lattice vibration, atomic positions vary.Wavelength is a measure of the distance between repetitions of a shape feature such as peaks, valleys, or zero-crossings, not a measure of how far any given particle moves. For example, in sinusoidal waves over deep water a particle near the water's surface moves in a circle of the same diameter as the wave height, unrelated to wavelength. The range of wavelengths or frequencies for wave phenomena is called a spectrum. The name originated with the visible light spectrum but now can be applied to the entire electromagnetic spectrum as well as to a sound spectrum or vibration spectrum.