Duration: 60 min High School Grade: 11 CCSS, NGSS
Magnetism:
Magnetic Fields
Author: Michael Carter
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Lesson overview
Magnets are common items in our daily lives. Playing around with some magnets, we can see some basic features:
• Magnets exert force on each other, as well as on certain metals.
• This force is strongest when they are touching, but also acts at a distance.
• Magnets can either attract or repel each other, depending on how they are held.
Learning objectives
• Know how to determine the direction of a permanent magnetic field.
• Know that a current-carrying wire creates a magnetic field.
• Know how to determine the direction of the magnetic field produced by a current-carrying wire.
Keywords
Magnetic Domains, Magnetic Poles, Magnetism, Right-Hand Rule
Standards
Common Core CCSS NGSS
ELA-Literacy RST.9- Students who demonstrate understanding can:
10.8 Assess the extent to which the reasoning and evidence in a text support the HS-PS4-1 Use mathematical representations to support a claim regarding relationships
author’s claim or a recommendation for solving a scientific or technical among the frequency, wavelength, and speed of waves traveling in various
problem. media.
RST.11-12.1 Cite specific textual evidence to support analysis of science and technical texts, HS-PS4-3 Evaluate the claims, evidence, and reasoning behind the idea that
attending to important distinctions the author makes and to any gaps or electromagnetic radiation can be described either by a wave model or a particle
inconsistencies in the account. model, and that for some situations one model is more useful than the other.
RST.11-12.7 Integrate and evaluate multiple sources of information presented in diverse
formats and media (e.g., quantitative data, video, multimedia) in order HS-PS4-4 Evaluate the validity and reliability of claims in published materials of the
to address a question or solve a problem. effects that different frequencies of electromagnetic radiation have when
absorbed by matter.
RST.11-12.8 Evaluate the hypotheses, data, analysis, and conclusions in a science or
technical text, verifying the data when possible and corroborating or HS-PS4-5 Communicate technical information about how some technological devices use
challenging conclusions with other sources of information. the principles of wave behavior and wave interactions with matter to transmit
and capture information and energy.
WHST.9-12.2 Write informative/explanatory texts, including the narration of historical events,
scientific procedures/ experiments, or technical processes.
Science and Engineering Practices
• Asking Questions and Defining Problems
• Using Mathematics and Computational Thinking
WHST.11-12.8 Gather relevant information from multiple authoritative print and digital • Engaging in Argument from Evidence
sources, using advanced searches effectively; assess the strengths and • Obtaining, Evaluating, and Communicating Information
limitations of each source in terms of the specific task, purpose, and audience;
integrate information into the text selectively to maintain the flow of ideas, Disciplinary Core Ideas
avoiding plagiarism and overreliance on any one source and following a • PS3.D Energy in Chemical Processes
standard format for citation. • PS4.A Wave Properties
• PS4.B Electromagnetic Radiation
Common Core • PS4.C Information Technologies and Instrumentation
Mathematics
MP.2 Reason abstractly and quantitatively. Crosscutting Concepts
• Cause and Effect
MP.4 Model with mathematics. • Systems and System Models
• Stability and Change
HSA-DDE.A.1 Interpret expressions that represent a quantity in terms of its context.
Connections to Engineering, Technology, and Applications of Science
HSA-SSE.B.3 Choose and produce an equivalent form of an expression to reveal and explain • Interdependence of Science Engineering, and Technology
properties of the quantity represented by the expression. • Influence of Science, Engineering, and Technology and the Natural World
HSA-CED.A.4 Rearrange formulas to highlight a quantity of interest, using the same reasoning Connections to the Nature of Science
as in solving equations. • Science Models, Laws, Mechanisms, and Theories Explain Natural Phenomena
Texbook correlations
Hewitt, P.G. (2009) Conceptual Physics. Upper Saddle River, NJ: Pearson Education. Unit V – Electricity and Magnetism, 36 – Magnetism, 720-732.
Serway, R.A., & Faughn, J.S. (2009) Holt Physics. Austin, TX: Holt, Rinehart and Winston. Chapter 19 – Magnetism, Section 1 – Magnets and Magnetic Fields, 676-682.
Walter, J.S. (2014) Pearson Physics. Upper Saddle River, NJ: Pearson Education. Chapter 22 – Magnetism and Magnetic Fields, 782-815.
Nirenberg, I. (2016) CK-12 Physics - Intermediate. Palo Alto, CA: CK-12 Foundation. 18.1 Magnetic Fields
ENGAGE 10
min
Pair students and have them study the 3D model “Coil of Wire and Moving Magnet” in the Lifeliqe Physics library. Then, have them discuss and share their answers to the questions:
• What is causing the needle to move?
• Why does it move back and forth?
Post and/or pose the essential questions of the lesson:
• How do you determine the direction of a permanent magnetic field?
• How does a current-carrying wire create a magnetic field?
• How do you determine the direction of the magnetic field produced by a current- carrying wire?
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EXPLORE 20
min
Have students read “Magnetic Fields.”
www.ck12.org/section/Magnetic-Fields-Physics-Intermediate/
EXPLAIN 10
min
Click to open in Lifeliqe
Pair students and have them study the 3D model “Greater White Pelican” in the Lifeliqe
Animal Biology library. Then, have them discuss and share their answers to the questions:
• What role do magnetic fields play in this bird’s annual migration?
• How does it know which way it’s going?
EXTEND / ELABORATE 10
min
Have students take what they have learned and see it in authentic contexts.
Show, or have students view, “10 AWESOME MAGNET TRICKS!” www.youtube.com/watch?v=h5oXWtSMHzw
EVALUATE 10
min
“Magnetic Fields”
www.ck12.org/section/Magnetic-Fields/
Select content for this lesson plan was derived from Nirenberg, I. (2016) CK-12 Physics - Intermediate. Palo Alto, CA:
CK-12 Foundation. Except as otherwise noted, all cK-12 content (including cK-12 curriculum material) is made available to users in
accordance with the Creative Commons Attribution-Non-Commercial 3.0 Unported (CC BY-NV 3.0)
License (http://creativecommons.org/licenses/by-nc/3.0/). http://www.ck12.org/saythanks.
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