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The string must be pulled taut in order for the phone to work. Longitudinal waves travel through a medium by a process of compression and rarefaction, which in this case alters the tension of the string. If the string is not taut, the alterations in tension will not vibrate the listener's cup. Similarly, elastic strings will not work properly, because the wave will just stretch the string without vibrating the listener's cup.
Don't let the string come into contact with any other objects, as this will partially divert the sound wave into the object, causing a weaker signal on the receiving end. Speaking into the cup transmits the sound of the speaker's voice into the bottom of the cup. The bottom of the cup acts as a diaphragm and vibrates with the sound of the speaker's voice. As the bottom of the cup vibrates, it transmits the vibrations into the taut string. The sound travels along the string as a longitudinal wave and ultimately vibrates the bottom of the receiving cup. The cup transmits the sound into the air around the listener's ear, allowing her to hear the speaker. Because the sound travels through solid mediums--the cup and the string--it travels more effectively than through air, allowing the users to communicate across large distances with volumes that would be inaudible if spoken through air
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What type of cup will keep water the coldest a styrofoam cup or plastic cup?
Styrofoam insulates better than a single layer of plastic. If, however, you have one of those plastic cups that have an outer and an inner "wall" with a sealed air space in between, that should work better than the Styrofoam.
Is a plastic bottle a good insulator?
No, a plastic bottle is not a good insulator because it is a poor conductor of heat. Insulators work by minimizing the transfer of heat, and plastic is not as effective as materials like glass or ceramic.
Does cold water stay colder in a plastic cup or a foam cup?
You're talking about holding the temperature of the water, right? As far as containing the liquid, they're about equal...but a styrofoam or double-wall plastic cup would hold temp better than a glass cup which would work better than a single-wall plastic cup.
Is a plastic cup lighter than a glass cup?
Yes, a plastic cup is generally lighter than a glass cup because plastic is less dense than glass. This means that a plastic cup will weigh less than a glass cup of the same size.
Who was Tracey who drinks from a plastic cup?
Who was Tracy who drinks for a plastic cup
How many plastic bags does it take to make a Starbucks plastic cup?
it takes 6 plastic bags to make a Starbucks plastic cup
Is a plastic cup a renewable resource?
A plastic cup can be recyclabe but it's definitely not renewable.
How much does a plastic cup weigh?
The weight of a plastic cup can vary based on the size and thickness of the cup. On average, a small disposable plastic cup weighs approximately 5-10 grams, while a larger plastic cup can weigh around 15-30 grams.
Which cup can hold heat better a plastic cup a coffee cup or a glass cup?
A glass cup will conduct heat away quickly - a plastic cup would hold heat the best.
How are plastic cups manufactured?
is a plastic cup manufactured
Do gsm phones work in India?
AnswerYES !!! GSM Phones, CDMA Phones will work in India
What are some uses for a plastic cup?
A plastic cup can be use for a number of things. It can be used for drinking beverages or for storing things. Paper clips and pens are some of the things you can keep in a plastic cup.
