BHS Physics Guide

Magnetism

Physics

Quarter 4

McGraw Hill Module 20

VOCABULARY

● Polarized ● Domain ● Magnetic field

● 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 proficiency 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 field and that a changing magnetic field 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 field and that a changing magnetic field causes an electric current. Students describe why the data will provide information relevant to the purpose of the investigation: ● citing specific cause-effect relationships ● an observable effect of a magnetic field 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 field near the circuit. ● to describe why these effects seen must be causal and not correlational, citing specific 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 field is measured near the circuit ● A method for changing the magnetic field near the circuit or a way of determining when the magnetic field is changing Collecting the data Students collect and record: ● electric currents and magnetic fields Refining the design