Year 9 Light & Sound

Assessment

PART A: RESEARCH REPORT (Individual Task)Select one of the topics below. You will research the topic, and produce a detailed, written report that covers the following points:1. Introduction: What is it? Discuss the invention and history.2. How does it work? Describe the waves involved, and how they behave and are affected

by the materials.3. Impact on Humans? How have we progressed? Pros and Cons?4. Conclusion: How do you predict this technology will be used in the future?5. References. Must include at least 3 different references.

SOUND OPTIONS: LIGHT OPTIONS:

• Headphones and Speakers • Infrared and Night Vision

• Hearing Aids and Cochlear Implants • Optical Aids: Glasses and Contacts

• Ultrasounds and Stethoscopes • Lasers

PART B: PRACTICAL INVESTIGATION (Can be in pairs)Select one of the following ideas to test. You will present either a video or Powerpoint that will state your hypothesis, demonstrate your methods of testing, and discuss your results

and conclusions. You can request to borrow materials, such as a light meter, from your teacher.

• Sound Proofing: Which materials work best?

• Testing Reflexes in Humans: Sight versus Sound.

• Speed of Sound: Air versus Water.

• Periscopes and Kaleidoscopes: How do they work?

• Does light lose energy as it bounces off surfaces?

If you have a different idea you would like to research or test, you may submit a proposal to your teacher. Refer to the marking rubrics for further details about the assessments. You will have two weeks to work on this. Good luck!

DUE DATE: ________________________