Final Answer:
The conclusions written are incorrect. The correct conclusion should be:
1. The MORE times you wrap the wire, the MORE paper clips are attracted — meaning the magnetic field gets stronger.
2. WITH a battery, the bolt *does* become an electromagnet and *can* attract paper clips.
──────────────────────────────────────
Explanation:
Let’s look at what really happens in an electromagnet experiment:
- When you wrap wire around a metal bolt and connect it to a battery, electricity flows through the wire. This creates a magnetic field around the coil — turning the bolt into a magnet (an electromagnet).
- The more times you wrap the wire (more coils), the stronger the magnetic field becomes — so it can pick up *more* paper clips, not fewer.
- Without a battery, there’s no current, so no magnetism. With a battery, the bolt *does* act as an electromagnet and *can* attract paper clips.
So the two conclusions listed are backwards or wrong:
- Conclusion 1 says “more wrapping → fewer paper clips” — that’s false. It should be *more* paper clips.
- Conclusion 2 says “with a battery, the bolt *cannot* attract paper clips” — that’s also false. It *can*, and that’s the whole point of an electromagnet.
The student likely mixed up cause and effect or misread their own data.
Parent Tip: Review the logic above to help your child master the concept of electromagnet worksheet.
