Calculating Wave Frequency and Speed

A wave has frequency of 50 Hz and a wavelength of 10 m. What is the speed of the wave?

• 0.2

• 5

• 500

• 20

Tags

NGSS.HS-PS4-1

A wave is 8 meters long and has a frequency of 3 Hz. Find its speed.

• .375

• 8

• 2.67

• 24

Tags

NGSS.HS-PS4-1

A sound wave has a λ of 170m. The speed of sound travels at 343 m/s. What is the frequency?

• 0.5

• 2.01

• 513

• 58.310

Tags

NGSS.HS-PS4-1

A series of waves has a frequency of 300 Hz and a wavelength of 0.33 m.  Calculate the wave speed.

• 100 m/s

• 909 m/s

• 0.0011 m/s

• 30 m/s

Tags

NGSS.HS-PS4-1

How fast the wave is moving through a medium (a)  

• wave speed

• wavelength

• amplitude

• frequency

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

A wave has a wavelength of 2 meters and a frequency of 1.5 Hz.What is its speed?

• 0.75

• 3

• 1.33

• 3.5

Tags

NGSS.MS-PS4-1

The speed of sound in air is 340 m/s.  The frequency of the sound waves generated by my voice is 720 Hz.  Calculate the period of sound of my voice.

• 0.00139 s

• 0.472 s

• 2.11 s

• 380 s

Tags

NGSS.MS-PS4-1

The speed of sound in air is 340 m/s.  The frequency of the sound waves generated by my voice is 720 Hz.  Calculate the wavelength of sound of my voice.

• 380 m

• 0.472 m

• 2.11 m

• 244,800 m

Tags

NGSS.MS-PS4-1

You can calculate the speed of a wave by using the formula below.

𝑣=𝑓λ

In other words, wave speed or velocity (𝑣) is equal to frequency (𝑓) multiplied by wavelength (λ).

The unit for wave speed velocity (𝑣) is meters/second (m/s), the unit for frequency (𝑓) is hertz (hz) and the unit for wavelength (λ) is meters (m).

• I don't get it.

• GOT IT!

Tags

NGSS.HS-PS4-1

A wave has a frequency of 5 hz and a wave length of 5 m. What is the wave speed (velocity)?

• 25 m/s

• 1 m/s

• 10 m/s

• 0 m/s