Magnetic Field Patterns Practical
IGCSE Edexcel Physics
6.6-6.7 Field Patterns
Key Concepts:
Field patterns can be mapped with iron filings or a plotting compass. Two magnets can create a uniform field.
Section A: Practical Method
1. Describe how to use iron filings to show a magnetic field pattern around a bar magnet.
[3]
2. Describe how to use a plotting compass to map a magnetic field.
[3]
3. Explain how to create a near-uniform magnetic field using two magnets.
[2]
Total marks: 8
Mark Scheme
1.
Place paper over magnet, sprinkle filings, tap gently to show lines [3]
2.
Move compass step by step, mark direction, join to show lines [3]
3.
Place unlike poles facing with small gap for uniform field region [2]