Question

students in a middle school science class are doing an experiment to learn more about electromagnets. they make an electromagnet by wrapping a wire around a nail and connecting the wire to a battery. they change the number of wire coils (wraps) around the nail to determine how the number of coils affects the number of metal paper clips the magnet can pick up. their data is shown in the bar graph. make a claim about how increasing the number of coils in an electromagnet affects its magnetic strength.

Explanation:

The experiment tests how coil number affects electromagnet strength (measured by paper clips attracted). The bar graph shows as coil count rises (20→40→60→80→100), paper clips attracted increase, indicating stronger magnetism.

Answer:

Increasing the number of wire coils in an electromagnet increases its magnetic strength.