In physics, magnetism is a force that can attract (pull closer) or repel (push away) objects that have a magnetic material like iron inside them (magnetic objects). Magnetism is a property of certain substances which pull closer or repel other objects. Magnetism is caused by the motion of electric charges.
Lesson 1 (or “Day 1”) Material
Lesson 2 (or “Day 2”) Material
- Day 2 Instructor Presentation
- Day 2 Student Handout
- Day 2 Rubric
- Read Physical 35 – What is Magnetism?
- Read Physical 35 – Earth’s Magnetic Field
- Read Physical 35 – Magnets and Electricity
Lesson 3 (or “Day 3”) Material
Lesson 4 (or “Day 4”) Material
2:00 Magnetism: Motors and Generators
4:49 DC Motor, How it works?
4:43 How to Make a Simple MOTOR out of SPINNER
Compare Contrast and Debate
Background: Absolute North and magnetic North are not exactly the same. Maps and other directions are typically communicated using absolute North. This means that using a compass requires correcting the measurement for the declination (or difference) between the reading on the compass compared to absolute North.
- Position A: Some people argue that maps should be created to align with magnetic North rather than absolute North so that no correction is required to use a compass.
- Position B: Others believe that the way maps are constructed – to align with absolute North – are appropriate, and that correcting for the declination of magnetic North is not that difficult to do.
Resources Documents and Links
Special Notes and Notices
- Science & Engineering Practice: Develop and use models.
- Cross-Cutting Concept: Cause and Effect: Mechanisms and explanations.