Give It Some Thought 6.2 Consider the notes that can be played on a piano. Part

Question

Give It Some Thought 6.2

Consider the notes that can be played on a piano.

Part A

In what way is a piano an example of a quantized system?

Give It Some Thought 6.2

Consider the notes that can be played on a piano.

Part A

In what way is a piano an example of a quantized system?

In what way is a piano an example of a quantized system? When you play a piano, your energy increases in a uniform, continuous manner and is therefore quantized. When you play a piano, you can press not only keys but also pedals, so that your energy is distributed and is therefore quantized. When you play a piano, you can press only on individual keys, so that your energy is restricted to certain values and is therefore quantized. When you play a piano, you can press few keys at the same time, so that your energy is distributed and is therefore quantized.

Explanation / Answer

Best fit:

c) When you play a piano, you can press only on individual keys, so that your energy is restricted to certain values and is therefore quantized.

This explains that each individual key has a "quantized" energy, therefore, a good fit for Quantum/Quanta

Incorrect answers:

a) When you play a piano, your energy increases in a uniform, continuous manner and is therefore quantized.

This is not true, since QUANTIZED cant be contuinuous, by definition, it msut be discrete

b) When you play a piano, you can press not only keys but also pedals, so that your energy is distributed and is therefore quantized.

False, pedals will change the distribution, so it makes it continuous, therefore not unique

d) When you play a piano, you can press few keys at the same time, so that your energy is distributed and is therefore quantized.

True, but pressing multiple keys will not make this a "unique" sound, therefore not a quantized example

best answer is C)

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