i need a topic for an eei (extended experimental investigation). i want a simple experiment that i can do. however, i need one that has a lot of physics behind it, and has a lot of information on the net about it. it can be on any topic within physics. if anyone has any great ideas then please let me know. thanks

electric magnets
can they interfere with cell phone signals?

When choosing a topic for your extended experimental investigation (EEI) in physics, it's important to select something that is not only simple to conduct but also has a significant amount of background information available. In the case of your question about whether electric magnets can interfere with cell phone signals, it could be a great topic because it involves both physics principles and readily available information.

To get started on your EEI, here is an explanation of how you can conduct the experiment to test the hypothesis of whether electric magnets interfere with cell phone signals:

1. Background research: Begin by researching the concepts of electric magnets, electromagnetic fields, and cell phone communication. Understand how electric magnets generate magnetic fields and how they can potentially interact with electromagnetic signals.

2. Experimental setup: Set up a controlled experiment where you have a cell phone and an electric magnet. You will need a strong magnet, such as a neodymium magnet, and a cell phone with a signal strength indicator or an app that measures signal strength. Ensure that you have a controlled environment free from other interfering signals.

3. Data collection: Place the cell phone in different distances and orientations relative to the electric magnet. Measure the signal strength at each location. Repeat the measurements multiple times to ensure consistent results.

4. Analyzing the data: Record the signal strength readings for each distance and orientation. Look for any consistent patterns or changes in signal strength in the presence of the electric magnet. Compare the results with a control group where no magnet is present.

5. Drawing conclusions: Analyze the data you collected and draw conclusions based on the consistency or variation in signal strength in the presence of the electric magnet. Interpret your findings in terms of whether or not electric magnets can interfere with cell phone signals.

Now, regarding the availability of information on this topic, you can find plenty of resources online. Start by searching for research papers, scientific articles, and educational websites related to electromagnetic fields, magnetic interference, and cell phone communication. These sources should provide you with a deeper understanding of the physics principles involved and the existing knowledge in this area.

Remember to properly cite the information you gather during your research and to follow any ethical guidelines for experimentation, especially if you are using human participants or sensitive equipment.

Good luck with your extended experimental investigation!