Physics Instructional Guide

Magnetism

Physics

Quarter 4

McGraw Hill Module 20

VOCABULARY

● Polarized ● Domain ● Magnetic feld

● Solenoid ● Electromagnet

● Galvonometer ● motor

K-12 LEARNING PROGRESSIONS (via USBE Core Guides)

Standard 3.2

END OF THE UNIT COMPETENCY WITH LANGUAGE SUPPORTS

Standard 3.2 What does it look like to demonstrate profciency on this standard? Identifying the phenomenon under investigation Students describe the phenomenon under investigation, which includes the following idea: ● that an electric current produces a magnetic feld and that a changing magnetic feld produces an electric current. Identifying the evidence to answer this question Students develop an investigation to plan and describe the data that will be collected and the evidence to be derived from the data, including: ● an electric current causes a magnetic feld and that a changing magnetic feld causes an electric current. Students describe why the data will provide information relevant to the purpose of the investigation: ● citing specifc cause-effect relationships ● an observable effect of a magnetic feld that is uniquely related to the presence of an electric current in the circuit, ● an electric current in the circuit that is uniquely related to the presence of a changing magnetic feld near the circuit. ● to describe why these effects seen must be causal and not correlational, citing specifc cause-effect relationships. Planning for this investigation In the investigation plan, students describe: ● The use of a circuit, including how it’s powered, the shape of the circuit and the types and positions of detectors ● How the current is measured in the circuit ● How a magnetic feld is measured near the circuit ● A method for changing the magnetic feld near the circuit or a way of determining when the magnetic feld is changing Collecting the data Students collect and record: ● electric currents and magnetic felds Refning the design