Science Quarter 2 – Electromagnetic Waves
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Questions and Answers

Which electromagnetic wave is primarily used for radio and television signals?

  • Infrared Waves
  • Gamma Rays
  • Radio Waves (correct)
  • Microwaves
  • What type of electromagnetic wave is utilized in Magnetic Resonance Imaging (MRI)?

  • Radio Waves (correct)
  • Ultraviolet Waves
  • X-rays
  • Microwaves
  • What is the main advantage of microwaves in satellite communication?

  • They transmit sound more effectively.
  • They have a longer wavelength than radio waves.
  • They are less harmful to the environment.
  • They can penetrate the earth's atmosphere. (correct)
  • Which type of electromagnetic radiation is primarily used for communication in mobile phones?

    <p>Radio waves</p> Signup and view all the answers

    Which electromagnetic wave has the highest energy compared to others?

    <p>X-rays</p> Signup and view all the answers

    In terms of wavelength, which electromagnetic wave has the longest wavelength?

    <p>Radio Waves</p> Signup and view all the answers

    What is the main effect of ultraviolet rays on human skin?

    <p>Causes cellular damage</p> Signup and view all the answers

    Which electromagnetic wave has the shortest wavelength?

    <p>Gamma rays</p> Signup and view all the answers

    What is a primary use of infrared waves?

    <p>For remote sensing and optical devices.</p> Signup and view all the answers

    Which electromagnetic wave is primarily responsible for heating food in a microwave oven?

    <p>Microwaves</p> Signup and view all the answers

    What type of electromagnetic radiation is used in night vision devices?

    <p>Infrared</p> Signup and view all the answers

    Which of the following types of electromagnetic radiation is considered harmful due to its high energy?

    <p>Ultraviolet rays</p> Signup and view all the answers

    What effect can prolonged exposure to high levels of X-rays have on human health?

    <p>Increased risk of cancer</p> Signup and view all the answers

    In the electromagnetic spectrum, what is the relationship between wavelength and frequency?

    <p>Inversely proportional</p> Signup and view all the answers

    Which type of electromagnetic wave is mostly absorbed by water, making it useful for cooking?

    <p>Microwaves</p> Signup and view all the answers

    Which electromagnetic wave can penetrate through human tissue, and is often used in medical imaging?

    <p>Gamma rays</p> Signup and view all the answers

    Which of the following uses of visible light is incorrect?

    <p>For thermal imaging</p> Signup and view all the answers

    Which type of electromagnetic wave is primarily used in RADAR technology?

    <p>Radio waves</p> Signup and view all the answers

    What imaging technique is known for using powerful magnets, computers, and radio waves to produce images of body structures?

    <p>Magnetic Resonance Imaging (MRI)</p> Signup and view all the answers

    Which kind of wave does NOT have enough energy to damage body cells?

    <p>Radio wave and visible light</p> Signup and view all the answers

    Which type of radiation is commonly used to identify counterfeit banknotes?

    <p>Ultraviolet radiation</p> Signup and view all the answers

    What color in an infrared camera indicates a higher temperature?

    <p>Yellow</p> Signup and view all the answers

    Which type of EM wave has the ability to penetrate through metals?

    <p>Short wavelength X-ray</p> Signup and view all the answers

    Which EM wave is primarily emitted by stars and certain radioactive substances?

    <p>Gamma rays</p> Signup and view all the answers

    Study Notes

    Science Quarter 2 – Module 2: Practical Applications and Effects of Electromagnetic Waves

    • This module explores the practical applications and effects of electromagnetic waves.
    • The module is part of the Alternative Delivery Mode (ADM) program for Grade 10 Science.
    • The module content is specifically focused on electromagnetic waves.
    • It includes activities and tasks to aid in understanding the topic.
    • The development team includes writers, editors, reviewers, illustrators and layout artists.
    • The document was printed in the Philippines by the Department of Education - Region I.
    • The document is a government property and not for sale.
    • Information on copyright laws is included
    • The module provides an introductory message for students and teachers.
    • Key concepts and activities are included for student learning, including pre and post-testing.
    • Notes for teachers and parents are included to guide home-based learning.
    • Practical applications of different EM waves are discussed, e.g. radio, microwaves, visible light and implications on living things.
    • Examples of these applications in daily life are given.

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    Description

    This quiz covers the practical applications and effects of electromagnetic waves as presented in Grade 10 Science Module 2. It includes key concepts, pre and post-testing, and activities designed to enhance understanding. Ideal for both students and educators involved in home-based learning.

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