Cool Labs

Lab #36.2   Magnetism: Seeing Magnetic Fields
Lab #36.2 Magnetism: Seeing Magnetic Fields

PurposeIn this activity, students will explore the patterns of magnetic fields around bar magnets in various configurations.DiscussionA magnetic field is a kind of aura that surrounds magnets. Although it can't be seen directly, the overall shape of the field can...

Electric Currents and Fields
Electric Currents and Fields

Students will observe that the magnetic field created by a coil of wire is perpendicular to the plane of the coil. They will also see that the field is stronger with more current, and that the field reverses direction when...

Magnetic Fields around Magnets
Magnetic Fields around Magnets

Students will make observations of bar and horseshoe magnets, using iron filings or magnetic chips to map the field. The filings will be close together where the field is strong, and farther apart where it is weak. Lines will form,...

Magnetic Fields Inquiry
Magnetic Fields Inquiry

We will explore magnetic field configurations and field strengths for permanent magnets in this inquiry exercise. Students will observe the curved field lines around a permanent magnet, and explore how field strength varies with distance. They will observe the magnetic...