1. What is the difference between reflected waves and refracted waves?
a. Reflected waves are bounced off of a surface while Refracted waves change direction after passing through a medium
b. There is no difference between them.
c. Reflected waves change direction after passing from one medium to another while Refracted waves are bounced off of a surface.
d. The difference solely depends on the plane mirror that is acting as the medium.
2. How are wavelength and frequency affected when they are transferred from a guitar string to the air?
a. The frequency will decrease and the wavelength will get longer.
b. The frequency will decrease and the wavelength will get shorter.
c. The frequency will stay the same and the wavelength will get shorter.
d. The frequency will stay the same and the wavelength will get longer.
3. How could we explain harmonics as it relates to a piano?
a, The piano is big and plays music.
b. The wire vibrates creating softer notes called harmonics.
c. The wires all vibrate together at different frequencies.
d. The keys strike the wires making the piano and percussion instrument.
4. Which of the following describes resonance frequency in regard to a piano?
a. The vibrations of wires echo in the piano.
b. The keys strike the wires making the piano a percussion instrument.
c. The wires can vibrate and, in turn, cause more wires to vibrate.
d. There is never any vibration in the piano.