High schoolers investigate magnetic permeability and saturation. In this physics lesson, students explain how current carrying wire coils create magnetic forces. They interpret normal magnetization curves.

Students explore electricity by completing a scientific worksheet in class. In this electromagnetism lesson, students discuss the history of magnets and how electromagnets are most commonly used in our daily lives. Students complete a...

High schoolers construct their own galvanometer. In this physics activity, students explain how it is used to detect electric current. They conduct an experiment to measure how much electricity flows through the circuit.

Students explain how electricity is transferred from source to load without actual wires connecting the two. In this physics lesson, students explore how wireless electricity was discovered. They cite practical applications of this...

Students experiment on magnets and electricity. In this physics lesson, students determine what factors affect the strength of a magnetic field. They design an experiment to determine how electromagnetic field strength varies with distance.

Students construct a sound speaker. In this technology lesson, students use magnet wires, a phono plug, a battery, and sandpaper to construct a homemade sound speaker.

Students predict the direction of movement for the pointer of a home-made galvanometer for a given current direction and describe how the current-carrying coil exerts a force on the magnet.

Students conduct a series of experiments on electromagnetic induction. In this physics lesson, students apply the right hand rule to determine the current direction and electromotive force. They test Lenz's and Faraday's law by observing...

High schoolers conduct a series of experiments on electromagnets. In this physics lesson, students build their own electromagnet and explain how it works. They determine the factors that affect its strength.

Students construct a homopolar motor following certain procedures. For this physics lesson, students explain how generators and motors work. They compare and contrast the characteristics of both.