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
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