Question

When a 440-Hz tuning fork and a piano key are struck together, five beats are heard. If the pitch of the note on the piano is higher than the tuning fork, what is the frequency of the note?

440 Hz
445 Hz
435 Hz
435 or 445 Hz

Answer 1

Hz means cycles / second

Answer 2

for you to hear 5 extra beats means one of them vibrated 5 more times

Answer 3

but since the pitch of the piano is higher

Answer 4

it has more vibrations/second so i believe its 445

Answer 5

Thanks :)

Answer 6

how do you know its right?

Answer 7

i sort of made up random reasons, i dont know how a beat really works lol

Answer 8

Lol but it is right :)

Answer 9

ok great haha