Grade Level |
12th |
Subject Area |
Physics |
Duration |
1.5 hours |
Setting |
Lab |
Background Knowledge |
Structure of the atom |
Author |
Fengfeng Zhou |
| |
Summary |
Lecture is delivered in the format of PowerPoint slides. Pictures are embedded in the slides to illustrate the subject matter and enhance interests of students. New technology related to magnetism is introduced, such as maglev (magnetic train) and MRI (magnetic resonance imaging). Students will engage in two attracting activities: one is to generate and observe a magnetic field by a current-bearing metal bar, the other is to investigate what factors affect the strength of an electromagnet. |
| |
Objectives |
Students will:
- Understand that a field, such as a magnetic field, is a special type of matter though it is invisible. They will know that there is a magnetic field around any current-carrying conductor.
- Be able to use right-hand rules to determine the direction of magnetic fields generated by a current-bearing wire and the polarity of a solenoid bearing current.
- Be able to understand the microscopic picture of magnetic materials.
- Be able to determine how to increase the strength of an electromagnet and exemplify the extensive use of an electromagnet.
|
| |
Ohio Standards |
- Science
- Design and carry out scientific inquiry (investigation), communicate and critique results through peer review.
- Investigate that electric charges in motion produce magnetic fields.
- Draw logical conclusions based on scientific knowledge and evidence from investigations.
- Technology
- Students use technology tools to enhance learning, increase productivity, and promote creativity.
- Students will develop an understanding of the cultural, social, economic, and political effects of technology.
- Students will develop an understanding of the influence of technology on history.
|
