Quiz 8 Flashcards
Why are some of the strings on stringed instruments ‘wound’ with wire?
increase the mass without affecting the stiffness
What are the two functions of pressing a key to make a small, flat bladed ‘tangent’ strike a string in a clavichord?
It defines the length of vibrating part of the string, and it causes the string to vibrate
What two kinds of friction allow the action of stick-slip motion in a bowed instrument?
static and kinetic
Why is a harpsichord different to a piano?
in the piano, the strings are hammered, whereas in the harpsichord the strings are plucked
What are the waves on a stringed instrument similar to, acoustically?
an open-open pipe
What are three elements that are present on all stringed instruments?
soundboard/membrane, produces standing waves, bridge
why is a violin much louder than a similar sized ukulele?
it is continuously excited, whereas the ukulele is plucked
When does piano beating occur?
if one of a group, or pair, of strings is slightly out of tune
What is the purpose of rosin on a bow for a violin or cello?
to increase the friction between the bow and the strings
