BIO 161: Scientific Method Help - Determine Variables

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SUMMARY

The discussion centers on identifying variables in a scientific experiment involving electromagnets conducted by Sara and Michael in BIO 161. The independent variable is the wire gauge used, while the dependent variable is the strength of the electromagnet, measured by the number of paper clips picked up. The experimental group consists of the electromagnets, and the control group is the paper clips. Controlled variables include the size of the nails and the number of turns of wire around each nail.

PREREQUISITES
  • Understanding of independent and dependent variables in experiments
  • Familiarity with the scientific method and experimental design
  • Basic knowledge of electromagnetism principles
  • Experience with data collection and analysis in scientific experiments
NEXT STEPS
  • Research the principles of electromagnetism and how wire gauge affects magnetic strength
  • Learn about controlled experiments and the importance of maintaining controlled variables
  • Explore methods for measuring the strength of electromagnets quantitatively
  • Study the scientific method in detail, focusing on hypothesis formulation and testing
USEFUL FOR

Students in biology or physics courses, educators teaching the scientific method, and anyone interested in experimental design and electromagnetism.

numberrronee
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I need to find out if I am right? I am in BIO 161 and need help answering these questions.

Sara and Michael tested electromagnets to see if the size of wire they used would make the magnets stronger. They selected 6 steel nails of the same size to make the magnets. Using 6 different sizes of insulated wire, they put 50 turns around each nail. Then each nail was hooked to 2 D cell batteries to make electromagnets. The strength of each magnet was tested by counting the number of paper clips which could be picked up by the electromagnet.

Determine

independent variable - (by counting)
dependent variable - (insulated wire or nails)
experimental group - (magnets)
control group - (paper clips)
controlled variables - (nails) (can be more than one)

are these answers right?

i think their pretty much one word answers. when we did an example they were just one word answers.

thanks a lot
 
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numberrronee said:
independent variable - (by counting wire gauge)
dependent variable - (insulated wire or nails number of paper clips)
experimental group - (magnets)
control group - (paper clips N/A)
controlled variables - (nails) (can be more than one wire gauge)

are these answers right?
No.

Edit: @jbriggs444
 
Last edited:

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