Using the Background Information, Scenario and Data Tables, identify the independent and dependent variables in this investigation.
1st blank is the independent variable. 2nd blank is the dependent variable.
options:
Strength of the electromagnet
Number of paper clips picked up
Battery Voltage
Number of Turns
Number of Trials
Electromagnet
background informations:
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 8 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.
1st blank: Number of Turns
2nd blank: Number of paper clips picked up