Ch. 20 - 21: Magnetism
Homework:
Monday, 3/25
Energy Use Project
Thursday, 3/28
Chapter 20
Questions: 2, 4, 5, 8, 9, 10, 15, 16, 20, 27
Problems: 2, 5, 9, 11, 14, 16, 20, 61, 67
Wednesday/Thursday, 4/10-11
Chapter 21
Questions: 2, 3, 6, 8, 9, 15
Problems: 2, 3, 5, 15, 31
Unit Objectives:
By the end of this unit, you will be able to:
- Trace magnetic field lines using a compass
- Predict the direction of field lines around current-carrying wires using right hand rules
- Find the direction and magnitude of the force on a moving charge in a magnetic field
- Use Lenz’s Law and Faraday’s law to determine the direction and magnitude of current induced by a changing magnetic field
Over the course of this unit, you will:
- Learn about why the Earth’s magnetic field protects us from harmful radiation
- Measure the mass of an electron
- Build a basic speaker, motor, and radio
- Learn how a metal detector works
Prerequisite skills: Understanding of position, velocity, and acceleration; mathematical reasoning; adding vectors; solving problems using Newton’s Laws and energy conservation; basic waves vocabulary; ability to work experience with electronics equipment including power supplies, circuit components, and oscilloscopes