# Vibrations in Space: Exploring the Science Behind a Struck Gong

• hsutrack
In summary, the conversation discusses whether a gong in space would vibrate and produce sound if struck, and if so, if it would vibrate indefinitely due to Newton's first law. The conclusion is that the gong will vibrate and make sound, but it will eventually stop due to internal forces and may also have translational velocity.
hsutrack
Ok, so here is my dilemma if that's how you spell it. So there is a Gong in space right, and let's say you hit it, does it even vibrate? No sound, of course, but does it still have the vibration necessary to make a sound? And if it does, does it go on indefinitely since and object in motion stays in motion unless acted upon? This is tricky i think, but maybe there is some simple answer. Please! I need peace from this!

No. It does not make any sound since there is no medium for the sound waves to propogate.

Yes. It does indeed vibrate.

No. It will not vibrate indefinitely. Internal forces of the gong's material will eventually bring it to a stop.

hsutrack,

To elaborate on FredGarvin's third point, Newton's first law really applies to the motion of an object's center of mass: The motion of the center of mass of an object will not change unless the object is acted on by an outside force. The gong can vibrate without its center of mass moving. On the other hand, if striking the gong gives its center of mass some translational velocity as well as setting it to vibrating, then when the vibrations die out, the gong will still be moving at the original translational velocity.

Newton rules!

## 1. How does the Space Gong vibrate?

The Space Gong is equipped with a special mechanism that creates vibrations when struck. This mechanism is similar to a traditional gong, but it has been modified to function in the unique environment of space.

## 2. Can the Space Gong be heard in space?

No, the Space Gong cannot be heard in the vacuum of space. Sound waves need a medium, such as air, to travel through in order to be heard. In space, there is no medium for sound waves to travel through, so the vibrations of the Space Gong cannot be heard.

## 3. What is the purpose of the Space Gong?

The Space Gong serves as a musical instrument and a scientific tool for studying the effects of sound and vibration in space. It can also be used as a means of communication between astronauts and ground control.

## 4. How is the Space Gong used in space exploration?

The Space Gong can be used to study the effects of sound and vibration on objects and materials in the microgravity environment of space. It can also be used to create a sense of rhythm and harmony in space, as well as a form of relaxation and entertainment for astronauts on long missions.

## 5. Can the Space Gong be played by astronauts?

Yes, the Space Gong can be played by astronauts just like a traditional gong. However, due to the lack of gravity in space, the vibrations and sounds produced by the Space Gong may be slightly different from those on Earth. Astronauts may need to adjust their technique in order to play the Space Gong effectively in space.

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