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ZIMSEC O-Level Combined Science

7.3.4.2Light and sound

Light and sound in ZIMSEC O-Level Combined Science: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic26 practice questions2 lessons

Overview

Form 2.

Learning objectives

What the syllabus expects you to be able to do.

  1. 7.3.4.2.1List sources of light and show that light travels in straight lines.
  2. 7.3.4.2.2Describe how sound is produced and transmitted, and show that it needs a material medium.

Lessons

  • Reflection of light

    22 min

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  • Sound

    28 min

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Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Light and sound: sample question

1 mark

A ray of light makes an angle of 62° with the surface of a plane mirror. What is the angle of reflection?

Answer in °.

Turn Light and sound into a strength.

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