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### wavelength description

Posted: Sat Apr 14, 2018 8:22 pm
In Mondays lecture Dr. Lavelle demonstrated the figure of the electric field and described what a wavelength was considered however, I am still confused as to what does amplitude mean in this context is it the height of the wavelength or...?

### Re: wavelength description

Posted: Sat Apr 14, 2018 9:30 pm
From what I understood during the lecture the amplitude of a wavelength represents its height.

### Re: wavelength description

Posted: Sat Apr 14, 2018 9:57 pm
In the textbook amplitude is defined as the height of the wave above the center line. So when you use the peak-to-peak distance you would count the highest point, or the amplitude.

### Re: wavelength description  [ENDORSED]

Posted: Sat Apr 14, 2018 10:01 pm
Amplitude is the height of the wave, wavelength is the distance from crest to crest or trough to trough

### Re: wavelength description

Posted: Sat Apr 14, 2018 10:18 pm
The amplitude of a wave is its height, but I also remember Dr. Lavelle saying how as the amplitude increases then the energy or intensity of the wave also increases. He compared it to a wave at the beach saying that a taller wave will be more powerful than a shorter wave.

### Re: wavelength description

Posted: Sun Apr 15, 2018 12:39 pm
The amplitude of a wave is defined as its height from the center line. The amplitude is very important in determining the energy of the wave because the larger the amplitude the higher the levels of energy will be as a result.

### Re: wavelength description

Posted: Sun Apr 15, 2018 2:41 pm
The amplitude is the height from the center line.

### Re: wavelength description

Posted: Sun Apr 15, 2018 3:00 pm
According to the book, the amplitude is the height of the wave above the center line. Similar to the figure that Lavelle drew in class, where the amplitude was the height of the wavelength. The wave is characterized by its amplitude and wavelength.

### Re: wavelength description

Posted: Sun Apr 15, 2018 4:28 pm
According to the textbook, the amplitude represents the height of the wave above the center line.

### Re: wavelength description

Posted: Sun Apr 15, 2018 5:20 pm
I vaguely remember what he said but he mentioned something about there being three peaks vs four peaks in a wavelength when reading the graph but that confused me as well? How exactly do you see how many there are (he said he had this on a final as an easy question but many students got it incorrect).

### Re: wavelength description

Posted: Sun Apr 15, 2018 5:36 pm
Alondra Juarez section 1E wrote:In Mondays lecture Dr. Lavelle demonstrated the figure of the electric field and described what a wavelength was considered however, I am still confused as to what does amplitude mean in this context is it the height of the wavelength or...?

Amplitude is the height of the wave!

### Re: wavelength description

Posted: Sun Apr 15, 2018 6:29 pm
By definition, amplitude is the height of the wave above the center line. So, when given a wave on an axis, you can visualize its amplitude by finding the center of the wave and measuring how high the wave's peak reaches, which would be your amplitude.