Questions about Sound Waves, Pendulum Clocks & Resonance Frequency

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In summary, sound waves travel due to pressure created by air, and high frequency singing can break glass due to matching resonant frequencies. A pendulum is a good basis for a clock because it experiences no damping force, and for beats to disappear, the frequencies of the two waves must be identical.
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nemzy
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what causes sound waves to travel? is it the pressure, or does sound create a vacuum created by air?

Why is it that if you sing at a really high note you can break a glass? Does it have to do something about resonant frequency of the glass?

WHy is a pendulum a good basis for a clock? Is it because a pendulum experiences no damping force?

When two waves of the same frequency combines, then do the beats dissapear?
 
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1. Sound travels for the same reasons the whole of a table moves when you push only one end.

2. Exactly. Some crystals have a resonant frequency that the human singing voice can match.

3. Whatever the amplitude or time, pendulum frequency is constant.

4. Frequency has to be absolutely identical for beat to dissapear.
 

Related to Questions about Sound Waves, Pendulum Clocks & Resonance Frequency

1. What is a sound wave?

A sound wave is a type of mechanical wave that is created by vibrations in a medium, such as air or water. These vibrations travel through the medium as a series of compressions and rarefactions, which our ears interpret as sound.

2. How do sound waves travel?

Sound waves travel by transferring energy from one molecule or particle to the next. As one molecule vibrates, it pushes and pulls on the neighboring molecules, causing a chain reaction that allows the sound wave to propagate through the medium.

3. What is a pendulum clock?

A pendulum clock is a timekeeping device that uses the swinging motion of a pendulum to keep track of time. As the pendulum swings back and forth, it activates a mechanism that moves the clock's hands forward in regular intervals.

4. How does a pendulum clock keep time?

A pendulum clock keeps time by the regular and consistent swinging motion of the pendulum. The length of the pendulum and the force of gravity determine the frequency of the swings, which can be used to accurately measure time.

5. What is resonance frequency?

Resonance frequency is the natural frequency at which an object vibrates most easily and with the greatest amplitude. When a force is applied to an object at its resonance frequency, it can cause the object to vibrate with a larger amplitude, potentially resulting in damage or destruction.

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