A group of students built electromagnets using wire, nails, and a 6V lantern battery. They decided to design an investigation to test factors that they could change to make a stronger electromagnet. The following data is from one set of investigations. Use the graph to answer the questions:
1. Write a claim based on this data.
2. What evidence from the graph supports your claim?
1. The number of coils of wire around the nail is positively correlated with the strength of the electromagnet.
2. The evidence from the graph shows a clear increase in the strength of the electromagnet as the number of coils of wire around the nail increases. This correlation indicates that the number of coils is a significant factor in determining the strength of the electromagnet.