You will get to know the major kinds of chemical reactions including polymerization, hydrolysis, combustion, replacements, and redox. Experiment with some electrochemical reactions as well.
After completing this tutorial, you will be able to complete the following:
Explain how you can tell whether a wave has a strong amplitude or a weak amplitude.
~ Amplitude refers to the height of oscillation of a wave. Waves with large amplitude-that is, a greater height of oscillation-are strong. Waves with weak amplitude-that is, a lower height of oscillation-are weak.
What is the best way to measure wavelength?
~ The best way to measure wavelength is to measure the distance between the highest points, or "crests," of two waves or to measure the distance between the lowest points, or "troughs," of two waves.
What is the difference between wave period and wave frequency?
~ Wave period is the time it takes for a wave to complete one oscillation. In other words, wavelength is the time it takes for a second crest or trough to pass the same point as the crest or trough that preceded it. Frequency refers to the number of oscillations that occur during a certain amount of time.
The propagation velocity, or wave speed, is a measurement of the distance a wave covers in a certain amount of time. If a wave has a wavelength of 6 meters and a period of 3 seconds, what is its propagation velocity?
~ The propagation velocity can be determined by dividing the wavelength by the wave period. In this case, the wavelength is 6 meters (m) and the wave period is 3 seconds (s):
Propagation velocity = wavelength ÷ period
Propagation velocity = 6 m ÷ 3 s
Propagation velocity = 2 m/s
Therefore, the propagation velocity of the wave is 2 m/s.
|Approximate Time||2 Minutes|
|Pre-requisite Concepts||Students should be able to define the following terms: amplitude, electromagnetic radiation, and frequency.|
|Type of Tutorial||Animation|
|Key Vocabulary||amplitude, electromagnetic radiation, frequency|