Wave Equation Quick practice

Front

What is the wave equation?

Back

The wave equation relates the speed (v), frequency (f), and wavelength (λ) of a wave: v = f × λ.

Front

How do you calculate the speed of a wave?

Back

Speed of a wave can be calculated using the formula: Speed = Frequency × Wavelength.

Front

What is frequency in the context of waves?

Back

Frequency is the number of waves that pass a point in one second, measured in hertz (Hz).

Front

What is wavelength?

Back

Wavelength is the distance between two consecutive points of the same phase in a wave, typically measured in meters.

Front

If a wave has a frequency of 10 Hz and a wavelength of 2 m, what is its speed?

Back

Speed = Frequency × Wavelength = 10 Hz × 2 m = 20 m/s.

Front

What is the frequency of a wave with a speed of 300 m/s and a wavelength of 3 m?

Back

Frequency = Speed / Wavelength = 300 m/s / 3 m = 100 Hz.

Front

What happens to the speed of a wave if the frequency increases while the wavelength remains constant?

Back

If the frequency increases and the wavelength remains constant, the speed of the wave increases.

Front

What is the relationship between frequency and wavelength?

Back

Frequency and wavelength are inversely related; as frequency increases, wavelength decreases, and vice versa.

Front

Calculate the frequency of a wave with a speed of 150 m/s and a wavelength of 5 m.

Back

Frequency = Speed / Wavelength = 150 m/s / 5 m = 30 Hz.

Front

What is the speed of a wave with a frequency of 50 Hz and a wavelength of 1.5 m?

Back

Speed = Frequency × Wavelength = 50 Hz × 1.5 m = 75 m/s.