Wave Speed and Frequency Calculations

The video tutorial explains how to use a ripple tank to calculate the speed of waves. It introduces the components of a ripple tank, such as the oscillating paddle and light source, and demonstrates how shadows of waves are used to measure wave speed. Two examples are provided, showing step-by-step calculations of wave speed using the formula V = F × λ, where V is wave speed, F is frequency, and λ is wavelength. The tutorial concludes with practice questions and encourages viewers to engage with additional resources.

What is the primary function of the oscillating paddle in a ripple tank?

• To calculate the frequency of waves

• To illuminate the tank

• To create waves in the water

• To measure the speed of waves

Which formula is used to calculate wave speed in a ripple tank?

• V = λ / F

• V = λ * F^2

• V = F * λ

• V = F / λ

If 40 waves are counted in 20 seconds, what is the frequency of the waves?

• 1 Hz

• 2 Hz

• 4 Hz

• 3 Hz

How is the wavelength calculated if the total length of 8 wavelengths is 80 cm?

• 16 cm

• 12 cm

• 10 cm

• 8 cm

What is the wave speed if the frequency is 2 Hz and the wavelength is 0.1 meters?

• 0.1 m/s

• 0.4 m/s

• 0.3 m/s

• 0.2 m/s

In the second example, what is the frequency if 30 waves are counted in 10 seconds?

• 2 Hz

• 5 Hz

• 3 Hz

• 4 Hz

What is the wavelength if 8 wavelengths cover a total distance of 40 cm?

• 4 cm

• 5 cm

• 6 cm

• 7 cm

Calculate the wave speed if the frequency is 3 Hz and the wavelength is 0.05 meters.

• 0.15 m/s

• 0.10 m/s

• 0.25 m/s

• 0.20 m/s

What should you do if you make a mistake in your calculations?

• Move on to the next topic

• Ask someone else to solve it

• Rewatch the video and correct it

• Ignore it

What is the purpose of converting centimeters to meters in wave calculations?

• To increase accuracy

• To make the numbers smaller

• To match the units in the formula

• To simplify the equation