Magnetism: Crash Course Physics #32

Learning Resource Type

Classroom Resource

Subject Area

Science

Grade(s)

9, 10, 11, 12

Overview

Magnets have a north pole and a south pole. Two of the same pole will repel each other, while opposites attract. Only certain materials, especially those that contain iron, can be magnets. There’s a magnetic field around Earth, which is why you can use a compass to figure out which way is north. In this episode of Crash Course Physics, Dr. Shini takes us into the world of magnetism.

Science (2015) Grade(s): 09-12 - Physics

SC15.PHYS.11

Develop and use models to illustrate electric and magnetic fields, including how each is created (e.g., charging by either conduction or induction and polarizing; sketching field lines for situations such as point charges, a charged straight wire, or a current carrying wires such as solenoids; calculating the forces due to Coulomb’s laws), and predict the motion of charged particles in each field and the energy required to move a charge between two points in each field.

UP:SC15.PHYS.11

Vocabulary

  • voltmeter
  • model
  • fields
  • field force
  • energy
  • potential energy
  • electric potential
  • electric charge
  • positive
  • negative
  • like
  • unlike
  • electric field strength
  • north and south magnetic poles
  • magnet
  • magnetic field strength
  • conduction
  • induction
  • charge
  • current
  • conductors
  • insulators
  • compass
  • multimeter
  • work
  • vector
  • point charge
  • test charge
  • Coulomb's law
  • proton
  • electron
  • attract
  • repel

Knowledge

Students know:
  • How to develop and use models.
  • Understanding of static electricity.
  • Phenomena of electric and magnetic fields.
  • How charges interact and how they behave in a field.
  • How fields interact.

Skills

Students are able to:
  • Properly use a voltmeter or mulimeter.
  • Develop and use models to make predictions and to illustrate explanations.

Understanding

Students understand that:
  • Some forces act over a distance, creating fields.
  • The behavior of objects in a field is predictable and caused by interaction of fields and charged particles.

Scientific and Engineering Practices

Developing and Using Models

Crosscutting Concepts

Cause and Effect

CR Resource Type

Audio/Video

Resource Provider

PBS

License Type

Custom

Accessibility

Video resources: includes closed captioning or subtitles
ALSDE LOGO