Adam observed properties of four different waves and
recorded observations about the frequency and volume of
each one in his chart.
Which statement could Adam declare based on the data in
the table?
Wave
Observations
250 hertz
12 dB
250 hertz
76 dB
1000 hertz
81 dB
250 hertz
81 dB
O Only the sound quality of waves Y and Z can be
compared.
O. The sound quality of all of the waves can be compared.
O The sound quality of waves W and X can be compared.
O The sound quality for these waves cannot be compared.

it can be observed without changing the identity of the object.

it depends on what substance you're talking about as well as many other factors. in quantum mechanics, the observation of particles affects the observers ability to measure certain properties. for example: you can know the velocity of a particle, but you can't know it's position; or you can know it's position, but not it's velocity. it's like trying to find out where a grain of sand is by throwing other grains of sand at it. once you find out where it is, it's been moved. it's also like trying to find an answer to the question of whether or not a tree falling in a forest makes a sound if nobody is there to hear it. paradoxically, the only way to find out is to be there and hear it.