Guide Questions: 1. Compare the noise created by the object dropped from 20 cm above and the created after the pie tin repositioned. 2. Compare the noise created by the object dropped from 20 cm above the pie tin and the object dropped from 100 cm above the pie tin. 3. What is the GPE difference (AU) of the object dropped at two different distances from the pie tin? 4. What does the sound created by the object in situation number 1 indicate?
Properties of sound
A sound wave is a mechanical wave (or mechanical vibration) that transit through media such as gas (air), liquid (water), and solid (wood).
Quality Of Sound
A sound or a sound wave is defined as the energy produced due to the vibrations of particles in a medium. When any medium produces a disturbance or vibrations, it causes a movement in the air particles which produces sound waves. Molecules in the air vibrate about a certain average position and create compressions and rarefactions. This is called pitch which is defined as the frequency of sound. The frequency is defined as the number of oscillations in pressure per second.
Categories of Sound Wave
People perceive sound in different ways, like a medico student takes sound as vibration produced by objects reaching the human eardrum. A physicist perceives sound as vibration produced by an object, which produces disturbances in nearby air molecules that travel further. Both of them describe it as vibration generated by an object, the difference is one talks about how it is received and other deals with how it travels and propagates across various mediums.
![Guide Questions:
1. Compare the noise created by the object dropped from 20 cm above and the
created after the pie tin repositioned.
2. Compare the noise created by the object dropped from 20 cm above the pie
tin and the object dropped from 100 cm above the pie tin.
3. What is the GPE difference (AU) of the object dropped at two different
distances from the pie tin?
4. What does the sound created by the object in situation number 1 indicate?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1eb141d8-34d0-4aaf-bccc-f6b7b0e78e1c%2F65a4439e-1803-413a-990e-52d042ef51c7%2Fn5m14j5_processed.jpeg&w=3840&q=75)
![Activity 3: Electric Potential Demonstration
Showing potential energy differences for the earth's gravitational field can be
shown visually. Showing electrical potential (energy) difference is harder to visually
show and understand. Use the gravity analogy to establish the electrical potential
difference concept.
(a) Drop an object (ex: baseball) from rest from 20
cm above a pie tin on spacers. Observe.
(A)
00 (b) Reposition the pie tin and spacers to a different
location and again drop the ball from 20 cm.
Observe.
(c) Drop the same ball onto pie tin 2, but from 100
cm above pie tin 2 and observe.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1eb141d8-34d0-4aaf-bccc-f6b7b0e78e1c%2F65a4439e-1803-413a-990e-52d042ef51c7%2F9oyl92b_processed.jpeg&w=3840&q=75)
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