What relationships should be formed here?

In summary, for a senior physics experiment involving stopping a computer fan with an electromagnet, the relationship between time to stop and resistance should be proportional. To calculate angular and linear momentum and torque, measure angular velocity before and after stopping. Additional data such as fan mass and electromagnet size can be used to calculate power dissipation.
  • #1
peglegmeg152
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I am currently doing a senior physics experiment where we are stopping a computer fan (with steel glued on to the blades) with an electromagnet, and measuring the time it takes to stop at varied resistances (using a rheostat).

I also need to calculate the angular and linear momentum and torque (and possibly other things). I am confused about what relationship should form between the time the fan takes to stop and the resistance - as well as how to go about collecting enough data to calculate the other things (momentum etc.)

Any help/advice/suggestions would be MUCH APPRECIATED!

Thanks in advance.
 
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  • #2
The relationship between time to stop and resistance should be proportional, meaning that as the resistance increases, the time it takes for the fan to stop should increase. To calculate the angular and linear momentum and torque, you will want to measure the angular velocity of the fan before the electromagnet is activated, and then compare it to the angular velocity after it is stopped. You can then use this data to determine the angular and linear momentum, as well as the torque. You may also want to record additional information such as the mass of the fan and the size of the electromagnet. This data can then be used to calculate the power dissipation of the system as well.
 

FAQ: What relationships should be formed here?

1. What factors should be considered when forming relationships in a scientific study?

When forming relationships in a scientific study, it is important to consider the relevance of the variables, the strength of the relationship, the direction of the relationship, and any potential confounding factors that may affect the relationship.

2. How do you determine the significance of a relationship in a scientific study?

The significance of a relationship in a scientific study is typically determined by analyzing the data using statistical methods. This involves calculating the correlation coefficient, conducting hypothesis tests, and determining the p-value to assess the likelihood of the relationship occurring by chance.

3. Can relationships formed in one study be generalized to other populations?

It is important to test the generalizability of relationships formed in one study by replicating the study with different populations. This helps to determine if the relationship is consistent across different groups and if it can be applied to a larger population.

4. How do you handle conflicting or unexpected relationships in a scientific study?

If conflicting or unexpected relationships are found in a scientific study, it is important to thoroughly examine the data and consider potential explanations. This may involve conducting further analyses, controlling for confounding factors, or re-evaluating the study design.

5. What are the ethical considerations when forming relationships in a scientific study?

When forming relationships in a scientific study, it is important to consider the potential impact on participants and ensure that their rights and well-being are protected. This may involve obtaining informed consent, maintaining confidentiality, and minimizing any potential harm to participants.

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