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ZingPath: Reflection

Light Reflection Puzzle

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Reflection

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Light Reflection Puzzle

Physical Science

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Learners complete five puzzles that use plane mirrors to direct a ray of light. This is followed a by short lesson on the Law of Reflection.

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Now You Know

After completing this tutorial, you will be able to complete the following:

  • Explain the difference between the incident ray and the reflected ray.
  • Explain that the angle of incidence is equal to the angle of reflection.
  • Describe the Law of Reflection.

Everything You'll Have Covered

The Law of Reflection states that the angle of incidence is equal to the angle of reflection. This law applies to a ray of light that strikes a plane mirror, which is a flat reflective surface. The incoming ray of light is the incident ray. The outgoing light ray that is reflected off of the surface of the mirror is called the reflected ray.

The normal is a line that is perpendicular to the plane mirror's surface. It is used to measure the angle of incidence and the angle of reflection. The angle formed between the incoming incident ray and the normal is called the angle of incidence, which is represented by the letter "i." The angle formed between the reflected ray and the normal is called the angle of reflection, which is represented by the letter "r." Again, the Law of Reflection states that these two angles are equal. For this reason, you can predict the path of a ray of light reflecting off of a plane mirror.

Tutorial Details

Approximate Time 20 Minutes
Pre-requisite Concepts angle, perpendicular, plane mirror, reflection
Course Physical Science
Type of Tutorial Concept Development
Key Vocabulary angle of incidence, angle of reflection, incident ray