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In a vacuum jar, there is no medium for sound waves to travel through, so the alarm cannot be heard. Sound waves require a medium, such as air, to propagate and reach our ears. Without a medium, there is no way for the sound to travel and be perceived.
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If an alarm clock is in a jar filled with air what happens if all the air sucked out of the jar?
If all the air is sucked out of the jar, the alarm clock will not be able to produce sound because sound requires a medium, such as air, to travel through. The alarm clock may still vibrate, but it will not create audible sound in a vacuum.
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.
What are the jobs in the bell jar experiment for the foam block and vacuum pump?
In the bell jar experiment, the foam block is used to represent the lifting force acting on an object. The vacuum pump is used to create a low-pressure environment inside the bell jar, causing the foam block to rise as the air pressure decreases, showcasing the concept of buoyancy and air pressure in a visual way.
What are examples of a vacuum?
Examples of vacuums include the vacuum inside a sealed jar, the vacuum of outer space, and the vacuum inside a vacuum cleaner.
A noisy toy is placed in a glass jar. All the air is then slowly removed from the jar. How does this affect the sound you hear?
As the air is removed from the jar, the sound of the toy will become quieter and eventually inaudible. This is because sound requires a medium (such as air) to travel through, and with no air in the jar, there is no medium for the sound waves to propagate through.
If an alarm clock is in a jar filled with air what happens if all the air sucked out of the jar?
If all the air is sucked out of the jar, the alarm clock will not be able to produce sound because sound requires a medium, such as air, to travel through. The alarm clock may still vibrate, but it will not create audible sound in a vacuum.
Will you hear anything when you set the alarm clock on the table and place it under a bell jar?
yes, because the bell jar will vibrate
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.
What does the rubber sheet on bell jar do when pulled down?
When the rubber sheet on a bell jar is pulled down, it creates a vacuum seal between the bell jar and the surface it is placed on. This vacuum seal allows for the removal of air from within the bell jar when connected to a vacuum pump, creating a vacuum environment inside the jar.
What are the jobs in the bell jar experiment for the foam block and vacuum pump?
In the bell jar experiment, the foam block is used to represent the lifting force acting on an object. The vacuum pump is used to create a low-pressure environment inside the bell jar, causing the foam block to rise as the air pressure decreases, showcasing the concept of buoyancy and air pressure in a visual way.
Why can a safety button on a jar not be clicked before it is opened?
The vacuum inside the jar keeps the button down. On opening the jar, the vacuum is broken and the button pops up (and the lid can be clicked). Therefore, if the safety button is up, the vacuum seal has been broken and the contents of the jar may have been contaminated, and the contents may have gone off!
5 On some food jar tops there is a message that the buttons will pop-up when the jar is open How does this work?
During packaging, a vacuum was created inside the jar, pulling the button in. When the jar is opened, the vacuum is released which allows to button to return to the "popped up" position.
Why is there a vacuum in a jar?
A vacuum in a jar occurs when all air is removed from the jar, creating an absence of pressure. This creates a low-pressure environment inside the jar, which can have various scientific and practical applications like preserving food or conducting experiments that require a controlled atmosphere.
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 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.
What are examples of a vacuum?
Examples of vacuums include the vacuum inside a sealed jar, the vacuum of outer space, and the vacuum inside a vacuum cleaner.
Why doesn't the seal on a mayonnaise jar hiss when you open it?
It's not under pressure (caused by gas) or in a vacuum. You should be concerned enough not to eat it if you hear a sound. The reason is that spoilage can give off gases.
