A group of students has been testing electromagnets in the lab. They made an electromagnet by
wrapping copper wire around a nail. For one set of tests, they wrapped the wire around the nail 25 times.
For the second set of tests, they wrapped the wire around the nail 50 times. They also have 4 different
batteries: 1.5 V, 3.0 V, 4.5 V, 6.0 V, 7.5 V, 9.0 V, 10.5 V, and 12.0 V. They use their electromagnets to
see how many paper clips each can pick up.
1. Identify the independent variable:
2. Identify the dependent variable:
3. On which axis will the independent variable be plotted? ) x or y
Answers: 3
Chemistry, 22.06.2019 07:00
In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?
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Chemistry, 22.06.2019 07:50
In which situation can a mixture always be called a solution
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Suppose you have designed a new thermometer called the x thermometer. on the x scale the boiling point of water is 129 ? x and the freezing point of water is 13 ? x. part a at what temperature are the readings on the fahrenheit and x thermometers the same?
Answers: 1
Chemistry, 22.06.2019 10:30
What woukd most likely be the transmittance at a 0.70 m solution of solute a? a) 7.6%b) 1.1%c)4.0%d)4.6%
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A group of students has been testing electromagnets in the lab. They made an electromagnet by
wrapp...
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