Curated OER
Building Polymer Cup Speakers
Students investigate sound waves and they build audio speakers. In this audio speakers and sound lesson, students explore how to make quality audio speakers. As a team they build their own speakers to have clarity in sound, quality in...
Curated OER
Electromagnitism Applications
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.
Curated OER
Powered Up About Electricity!
Students study the process of turning coal into electricity. In this electricity lesson, students are guided by their teacher through the steps required to turn coal into electricity. Students complete a worksheet answering questions...
Curated OER
Speaker
Students construct a sound speaker. For this technology lesson, students use magnet wires, a phono plug, a battery, and sandpaper to construct a homemade sound speaker.
Curated OER
Current-Carrying Coils In Magnetic Fields
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.
Curated OER
Lenz's Law
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...
NOAA
Oceans of Energy
Are the earth's oceans really just giant batteries, waiting for their energy to be harnessed? Middle school mechanical engineers will be shocked by the amazing amount of energy that forms around them after diving into part four of a...
Curated OER
A Simple Motor
Instructions for building a simple electromagnetic motor are provided for the teacher. Aside from some sketchy background information and a list of content standards to be met, that is about all you will find in this resource. The motor...
Curated OER
Build a Simple Motor?
Students experience how to construct a simple electromagnet based motor. In groups they explore what a component is and construct a circuit that can rotate the orientation of the magnet by turning the switch on and off. Electromagnetic...
Curated OER
Transformers
Students examine how a transformer works and its practical applications. In this electricity activity students complete several experiments using transformers and generators.
Curated OER
Motion and Forces
Eighth graders define the terms: magnetism, poles, compass, magnetic field, lines of force, electromagnet. They name two properties shared by all magnets and describe how one magnet will affect another.
Curated OER
Energy Conversion
Sixth graders study energy conversions. They watch a demonstration of a working engine and make a chart explaining the energy conversions taking place. They build a simple electric motor and research other types of electric generators.
Curated OER
Electromagnets: Winding Things Up!
Students explore solenoids and electromagnets. After building an electromagnet, students use a TI Graphing calculator, a CBL 2 interface and a magnetic field sensor to measure the strength of a magnetic field. They create a graph of...
Curated OER
Making an Electromagnet
Young scholars explore electromagnetic forces. In this electromagnetic activity, students construct a working electromagnet and conduct a series of experiments to see what increases the strength of an electromagnet.
Curated OER
Fun With Electromagnets
Fifth graders construct their own electromagnet out of copper and nails. They discover what objects could be used for magnets. Finally, 5th graders discuss how electric currents are formed.
Curated OER
Electromagnets
Students 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.
Curated OER
Homopolar Motor Experiments
Learners construct a homopolar motor following certain procedures. In this physics lesson, students explain how generators and motors work. They compare and contrast the characteristics of both.
Curated OER
Faraday's Law of Induction
Students study Faraday's law of induction and the equations that show how to calculate electromagnetic induction. In this electromagnetic lesson students complete several experiments on the law of induction.
Curated OER
Loudspeaker
Students study the different types of loudspeakers and how they work. In this sound activity students create their own loudspeakers.
Curated OER
The Electromagnetic Crane
Students explore electromagnetism, simple machines and the design process. They use the concepts of electromagnetism to design and build a device that uses an electromagnet, a pulley and a lever using the provided Engineering Design...
Science Education Resource Center at Carleton College
Serc: Investigating Magnetism
In this physical science lab, students will investigate ways to control an electromagnet, how adding coils of wire can change the magnet, and the differences between an electromagnet and a bar magnet. Students will explain in their...
Science Education Resource Center at Carleton College
Serc: Electromagnetic Induction Demonstration
Students learn the relationship between the electric and magnetic fields. Specifically, they verify that a magnetic field is created in a current carrying coil of wire and a changing magnetic field can induce a current in another coil of...