Students explore the magnetic field surrounding a simple bar magnet. They can drag the compass around in the space surrounding the bar magnet, and observe the effect of the magnet on the compass needle.

Learn what magnetic fields are and how to calculate them with this reference page.

A handful of iron filings helps visualize the invisible magnetic field that circulates around a wire with a current running through it. (Java tutorial)

Whenever current travels through a conductor, a magnetic field is generated. (Java tutorial)

Experiment with the compass in this tutorial to see how it responds to magnetic fields.

Simulate the creation of an induced magnetic field through the use of a simple electric circuit. An interactive demonstration is included.

Students use a Magnetic Field Sensor to measure the magnetic field and the current in a solenoid. They explore factors that affect the magnetic field, study how the field varies in parts of the solenoid, and determine the permeability...

This site from NASA provides a short, illustrated description of the basics of magnetic fields and magnetic poles.

An electromagnetic simulation which replicates moving charged particles in two identical magnetic fields separated by a zero magnetic field gap.

This lab was designed to have students figure out the formula for the force on a charge moving through a magnetic field. Then they are to see how the direction of the force is dependent on the direction of the charge's motion and the...

This is a quantitative lab that will have students look at the direction of the magnetic field from moving charges in a wire. They can also get an intuitive sense of magnetic field strength factors based on the intensity of the circles...

Determine the mass and KE of a particle trapped in a magnetic field given the charge of the particle as well as the speed and strength of the field.

This lab was designed to have students test the factors that affect the path of charged particle in a magnetic field. Students will be able to adjust the mass and charge of the particle. They will be able to change the speed of the...

Find the force and the direction of the force on a charged particle moving through a magnetic field.

[Free Registration/Login may be required to access all resource tools.] Students learn how a magnetic field affects moving charged particles or an electric current carried by a wire.

A bar magnet model built by placing a group of magnetic dipoles along the magnet. This simulation shows the magnetic field of a bar magnet, and has a movable compass which shows the magnetic field values.

In this activity, students use the same method as in the activity from lesson 2 to explore the magnetism due to electric current instead of a permanent magnet. Students use a compass and circuit to trace the magnetic field lines induced...

Students will build a simple version of a magnetometer and use it to discover the types of areas of the Sun that have very strong magnetic fields. Students will then describe what the types of features associated with the Sun's strongest...

[Free Registration/Login may be required to access all resource tools.] The Earth's magnetic field and how it protects life on Earth, and how it is used for navigation.

[Free Registration/Login may be required to access all resource tools.] Examines Earth's magnetic field.

[Free Registration/Login may be required to access all resource tools.] Discusses what a magnetic field reversal is and the evidence that this has happened with the Earth.

Learners investigate current-carrying wires in magnetic fields. Some topics explored in the activities are forces, magnetic dipoles, and circuits. The resource consists of video clips, lecture notes, exam questions, java applets, and...

College-level physics course highlighting electricity and magnetism. This course is divided into several modules including electric fields, magnetic fields, electromagnetic forces, conductors and dielectrics, electromagnetic waves, and...

In this physics lab young scholars discover the invisible magnetic field where the magnet can exert its power to push or pull.