Learn on PengiAmplify Science (California) Grade 8Chapter 1: Modeling Magnetic Force

Lesson 3: Attraction and Repulsion

Key Idea.

Section 1

The Rule of Poles

Key Idea

Every magnet has two distinct ends: a North pole and a South pole. The interaction between magnets is governed by the orientation of these poles.

The fundamental rule is: Opposites attract, and likes repel.

Section 2

Predicting Interactions

Key Idea

Understanding pole orientation allows for the prediction of movement.

If a system requires a launching (pushing) force, the magnets must be arranged with like poles facing each other to create repulsion.

Book overview

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Chapter 1: Modeling Magnetic Force

  1. Lesson 1

    Lesson 1: Pre-Unit Assessment

  2. Lesson 2

    Lesson 2: Magnetic Force and Motion

  3. Lesson 3Current

    Lesson 3: Attraction and Repulsion

  4. Lesson 4

    Lesson 4: Magnetic Field Lines

Lesson overview

Expand to review the lesson summary and core properties.

Expand

Section 1

The Rule of Poles

Key Idea

Every magnet has two distinct ends: a North pole and a South pole. The interaction between magnets is governed by the orientation of these poles.

The fundamental rule is: Opposites attract, and likes repel.

Section 2

Predicting Interactions

Key Idea

Understanding pole orientation allows for the prediction of movement.

If a system requires a launching (pushing) force, the magnets must be arranged with like poles facing each other to create repulsion.

Book overview

Jump across lessons in the current chapter without opening the full course modal.

Continue this chapter

Chapter 1: Modeling Magnetic Force

  1. Lesson 1

    Lesson 1: Pre-Unit Assessment

  2. Lesson 2

    Lesson 2: Magnetic Force and Motion

  3. Lesson 3Current

    Lesson 3: Attraction and Repulsion

  4. Lesson 4

    Lesson 4: Magnetic Field Lines