Question
Ms. Klein divides her science class into 6 groups. She gives each group an iron nail, 2 meters (m) of insulated wire, a D-cell battery, and ten paperclips. She asks the groups to use the materials to build an electromagnet by wrapping the insulated wire around the nail. Then, groups should test their electromagnets to find the maximum number of paperclips their magnet will lift.
The illustration shows an iron nail wrapped with a coil of insulated wire. The ends of the wire are connected to the positive and negative ends of a battery.
The class completes a data table for all the groups as shown below.
Multiple Choice Question
Which question does the data in the table best answer?
A.
What distance is required before the magnetic strength is weakened in an electromagnet?
B.
In which direction does the current flow in an electromagnet?
C.
How does the number of coil wraps affect the strength of an electromagnet?
D.
What is the best object to use as the metal core in an electromagnet?
Answers
GPT-4o mini
The question that the data in the table best answers is:
C. How does the number of coil wraps affect the strength of an electromagnet?
This is because the experiment involves wrapping insulated wire around an iron nail and testing the electromagnet's strength by lifting paperclips. The number of wraps would directly affect the strength of the electromagnet, which aligns with the focus of option C.
C. How does the number of coil wraps affect the strength of an electromagnet?
This is because the experiment involves wrapping insulated wire around an iron nail and testing the electromagnet's strength by lifting paperclips. The number of wraps would directly affect the strength of the electromagnet, which aligns with the focus of option C.