Does Wave Speed Indicate Medium Density?

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In summary, the conversation discusses the behavior of a wave sent through a wire at a frequency of 200 Hz and traveling at 500 m/s. When a lighter wire is attached, the wave slows down to 400 m/s. The question is whether this indicates a higher or lighter medium. It is suggested that the wavelength and speed of the wave change at the same rate, while the weight of the wire may affect the energy required to move it. The conclusion is that the weight of the wire may have an impact on the behavior of the wave.
  • #1
StaticShock
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The information given is that a wave is sent though a wire with the frequency of 200 hz, and tarvles 500 m/s. A lighter witre is attached and the wave slows down to 400 m/s. Is it a higher or lighter medium?

I want to say lighter as the wavelength is decreeased, meaning it has a figher frequency, meaning a lighter medium. However, I am unsure if my thinking is correct.
 
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The frequency does not change. The wavelength does change, but so does the speed of your wave. They both change at the same rate Eg, wavelength/2, speed/2, v=a/t, so t=a/v. If both a (distance) and v (velocity) change at the same rate, t (time to cover the distance, i.e. one wave) remains the same.

However, something does change. Obviously, a heavier wire takes more energy to move, so, erm, think.

Sorry if I am not being very clear.
 
  • #3


Your thinking is correct. In this scenario, the wave's frequency remains constant while its velocity changes. This indicates that the medium is indeed lighter, as a decrease in velocity typically corresponds to a decrease in density. As a scientist, we must always consider all factors and analyze the data before making a conclusion. In this case, it is important to also consider other variables such as the tension and thickness of the wire before making a definitive statement about the medium's weight.
 

1. What is a heavier or lighter medium?

A heavier or lighter medium refers to the density or weight of a substance compared to another substance. For example, water is a lighter medium compared to oil.

2. How does the weight of a medium affect its properties?

The weight of a medium can affect its properties in various ways. For example, a heavier medium may have a higher viscosity, while a lighter medium may have a lower boiling point. The weight of a medium also affects how it interacts with other substances.

3. Why is the weight of a medium important in scientific experiments?

The weight of a medium is important in scientific experiments because it can impact the results and conclusions drawn from the experiment. For example, a heavier medium may cause objects to sink, while a lighter medium may cause them to float. This can affect the accuracy of measurements and observations.

4. How can the weight of a medium be measured?

The weight of a medium can be measured using a scale or balance. The medium is placed on one side of the scale and weights are added to the other side until the scale balances. The weight of the medium can then be calculated based on the weight of the added weights.

5. Can the weight of a medium change?

Yes, the weight of a medium can change. This can occur due to changes in temperature, pressure, or composition of the medium. For example, water can become heavier when frozen, and air can become lighter when heated. The weight of a medium can also change if it undergoes a chemical reaction or physical change.

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