Investigating Waves

Question 1

What’d you use to measure water waves.

Answer 1

A ruler for the wavelength. By making the motor speed and the strobe frequency the same to make the waves stationary. The frequency is when motor speed = strobe frequency and I’d use that to calculate wave speed = wavelength x frequency

Question 2

How is measuring speed of sound waves in a bar done?

Answer 2

By tapping the end of the bar with a hammer and measuring the the frequency of sound produced with an electronic device.

Question 3

What’s the process of the sound waves experiment?

Answer 3

By tapping the end of the bar with a hammer and recording the frequency picked up by the phone. Repeat this with bars of different lengths.