Electromagnet Coil Strength Investigation
Written by Adi Ackerman, Head Teacher
"Electromagnet Coil Strength Investigation" is written for 7th Grade (Ages 12-13), and it covers NGSS MS-PS2-3. A 6th grader who is already steady on energy can use it too, and an older student can use it as a short review.
2 pages in this set
7th grade science worksheet: wind an electromagnet coil, plot clips lifted at 10 to 50 turns and compare 1, 2 and 3 cells. Answer key included. Part of our electricity and magnetism energy collection. Aligned to NGSS standards.
How do I use this worksheet?
Start with How Electron Flow Makes a Current for the vocabulary. Then pair a charging sheet with a data sheet, since the charging sheets explain electron movement and the data sheets practice variables and graphs.
What students will practice
- Students will plot paper clips lifted against the number of coil turns from a table of sample data.
- Students will name the independent, dependent and controlled variables in an electromagnet test.
- Students will write a claim backed by numbers about turns, cells and magnet strength.
Curriculum Links
Next Generation Science Standards
Science · 7th Grade
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Browse the grade, subject, and topic this belongs to.
FAQ
How do I use this electricity and magnetism worksheet?
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Start with How Electron Flow Makes a Current for the vocabulary. Then pair a charging sheet with a data sheet, since the charging sheets explain electron movement and the data sheets practice variables and graphs.
What does this worksheet teach?
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Wind an electromagnet coil, plot clips lifted at 10 to 50 turns and compare 1, 2 and 3 cells. The directions on the page read: Read the procedure and study the tables. Then complete page 2. An answer key is included.
Can I use this electricity and magnetism worksheet for homeschool or classroom?
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Yes, both. We made it for 7th grade energy, and it works the same at home or at school. At home, a student can work through it alone and then go over it with you, which shows quickly what is solid and what needs another look. In class it works as independent practice, homework or a warm-up, and you can print one copy or a full set.
Why do electrons move in a wire?
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A battery pushes electrons through a wire that joins its two ends. Electrons are negative, so they move toward the positive end. How Electron Flow Makes a Current explains this and the roles of voltage and resistance.
What happens when you charge by conduction?
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When a charged conductor touches a neutral one, charge spreads across both. Identical spheres share the total equally, so add the two charges and divide by 2. Only electrons move.
How does distance change magnetic force?
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In the investigation, a steel plate hangs above disc magnets and the force is read at each gap. Students graph 1, 2 and 3 magnets and describe how the pull changes as the gap grows.
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