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Main Curriculum Tie:
Materials needed per student to make the motors:
Background For Teachers:
Magnetism comes from the special arrangement of atoms in certain materials. Everything is made of atoms, and each atom has its own tiny, magnetic field. In materials such as rubber, paper, plastic, and ordinary rock, the atoms have no particular arrangement, so all the atomic magnetic fields cancel each other out and produce no overall magnetic quality. In iron, however, the individual atoms are magnetized strongly enough to line up in tiny groups called magnetic domains. Depending on how aligned these magnetic domains are with one another, iron can be non‐magnetized, strongly magnetized, or completely magnetized.
Students’ confusion and misconceptions about magnetism must be carefully considered.
Understanding how an electromagnet works is very basic. By running electric current through a wire, you can create a magnetic field. A loop of wire that carries an electric
current creates a magnetic field through the loop. You can increase the strength of this magnetic field by winding a lot of loops. The more loops, the stronger the magnet. An electromagnet may be constructed with enamel‐coated wire wound around a large iron nail and connected to the poles of a battery. When this magnetic field is created it can be used to make motors, to read/write hard drives, to make stereo speakers, etc.
Intended Learning Outcomes:
Begin with a riddle.
We will be studying magnetism through electromagnets for the next few weeks. First, let's assess what the students already know by creating a foldable for their journals called a KW‐L‐H chart.
It stands for:
What you already Know.
We will add new information to the chart throughout the unit.
Activity Connected to the Lesson:
Using Electromagnets to make a Motor (Allow 30 minutes for this activity)
Lesson and Activity Time Schedule:
Created Date :