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yes but softer and slightly blured or muffled.
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Why can't you hear whoosh sound when you open the jar of pickle or peanuts at the second time or can you hear the sound at the second time?
Jars of peanuts, pickles, spaghetti sauce and others, are vacuum sealed at the manufacturing plant. That means that all the air is sucked out of the jar at the moment that the lid is screwed on. This is done to prevent bacterial growth. the whoosh sound we hear is the outside air rushing back into the jar when we open it for the first time. When we close the jar, there is always some air that stays trapped in the empty space under the lid. Since air is already present in the jar when we open it again, no air needs to rush in and no whoosh sound is produced.
If a bell is ringing in a bell jar you cant hear it when the air is pumped out but you see it what differences in properties of sound and light does this indicate?
That sound cannot move through a vaccum.
Why cant you hear a bell inside of a vacuum jar?
Sound is mechanical energy, and the energy of the sound is transferred into the medium through which it is travelling. As the energy of sound is carried by the medium, the vacuum of space will not support a sound wave.
How can you show that sound is a form of mechanical energy?
Sound can only travel through a medium (matter). Different materials allow sound to travel faster or slower. However, as an experiment put an electron bell in a bell jar. You hear it ring. Evacuate the bell jar of as much gas a possible ( a true vacuum is almost impossible to achieve in a Bell Jar), allow the bell to ring again. It will be much quieter, although the bell hammer will be vibrating at the same speed. By extrapolation, when all the gas is evacuated(vacuum) there will be no sound. So sound needs a medium to travel through.
If an alarm clock is in a jar filled with air what happens if all the air sucked out of the jar?
The alarm would be much quieter, as sound can't travel through vacuum. But if it's a mechanical alarm clock then vibrations would be transferred from the clock to the jar and then to whatever the clock is standing on , and you'd probably be able to hear some of that.
Experiment to demonstrate that sound need a material medium to propagate?
Take an electric bell and hang this bell inside an empty bell-jar fitted with a vacuum pump (as shown in the following figure). Initially, one can hear the sound of the ringing bell. Now, pump out some air from the bell-jar using the vacuum pump. It will be observed that the sound of the ringing bell decreases. If one keeps on pumping the air out of the bell-jar, then at one point, the glass-jar will be devoid of any air. At this moment, no sound can be heard from the ringing bell although one can see that the prong of the bell is still vibrating. When there is no air present inside, we can say that a vacuum is produced. Sound cannot travel through vacuum. This shows that sound needs a material medium for its propagation.
How do you use a 3 and 5 quart jar to measure 1 quart?
Fill 3 qt jar, and empty into 5 qt jar. Fill 3 qt jar again, and empty 2 qt into 5 qt jar, 1 qt left.
Where does water in the jar come from when an empty jar is left outside overnight?
Rain or Condensation
How the activity to show that sound requires a medium to travel?
The famous bell jar experiment establishes that a material medium is so essential for sound waves to pass through. An electric bell is covered by a jar. The air inside the jar can be removed by means a vacuum pump. As the pressure inside the jar gets reduced the intensity of sound goes on decreasing and when the pressure becomes very much lower then no sound is heard. Thus the need of material medium for propagation of sound energy has been verified.
What would animals sound like if they could talk?
Jar Jar
What happens if you drop a banana in a jar and leave it there for two weeks?
It will rotYes, it will after 2 weeks, but did you mean a jar full of fluid or something or and empty jar
What are the jobs in the bell jar experiment for the foam block and vacuum pump?
The vacuum pump stops the sound waves from coming out. Because there are no particles to pass on the sound in a vacuum, we see the clock vibrating, but do not hear anything at all.
