Question
80 full waves each with a wavelength of 2 m move past a point in 20secons.
16.1 calculate the frequency of these waves
16.2 calculate the period of these waves
16.3 calculate the speed of these waves
16.1 calculate the frequency of these waves
16.2 calculate the period of these waves
16.3 calculate the speed of these waves
Answers
GPT 3.5
16.1 To calculate the frequency of these waves, we use the formula:
Frequency (f) = Number of full waves / Time = 80 / 20 = 4 Hz
Therefore, the frequency of these waves is 4 Hz.
16.2 The period of a wave is the time it takes for one full wave to pass a point. We can calculate it using the formula:
Period (T) = Time / Number of full waves = 20 / 80 = 0.25 s
Therefore, the period of these waves is 0.25 seconds.
16.3 The speed of a wave can be calculated using the formula:
Speed (v) = Frequency (f) x Wavelength (λ)
Since the wavelength is given as 2 m, and we already calculated the frequency to be 4 Hz, we can substitute these values into the formula:
Speed (v) = 4 Hz x 2 m = 8 m/s
Therefore, the speed of these waves is 8 meters per second.
Frequency (f) = Number of full waves / Time = 80 / 20 = 4 Hz
Therefore, the frequency of these waves is 4 Hz.
16.2 The period of a wave is the time it takes for one full wave to pass a point. We can calculate it using the formula:
Period (T) = Time / Number of full waves = 20 / 80 = 0.25 s
Therefore, the period of these waves is 0.25 seconds.
16.3 The speed of a wave can be calculated using the formula:
Speed (v) = Frequency (f) x Wavelength (λ)
Since the wavelength is given as 2 m, and we already calculated the frequency to be 4 Hz, we can substitute these values into the formula:
Speed (v) = 4 Hz x 2 m = 8 m/s
Therefore, the speed of these waves is 8 meters per second.