Gr 8 Natural Sciences Ch 3.4: Spectrum of visible light

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson
Download our mobile app to listen on the go
Get App

Questions and Answers

What is the range of wavelengths of light that are visible to the human eye?

  • Electromagnetic spectrum
  • Visible spectrum (correct)
  • Infrared spectrum
  • Ultraviolet spectrum

What is the process of separating a wave into its constituent parts?

  • Dispersion (correct)
  • Refraction
  • Reflection
  • Composition

What is the acronym used to remember the colors of the visible spectrum?

  • ROYGBIV (correct)
  • RBGIYOV
  • VIBGYOR
  • YOVIGBR

What is the color with the longest wavelength and lowest frequency?

<p>Red (D)</p> Signup and view all the answers

What happens when light passes through a prism?

<p>It is dispersed (B)</p> Signup and view all the answers

What is the result of combining the colors of the visible spectrum?

<p>White light (A)</p> Signup and view all the answers

What is the purpose of the prism in the activity to investigate the visible spectrum?

<p>To disperse the light (B)</p> Signup and view all the answers

What is the material needed to set up the prism in the activity?

<p>A glass prism and a light source (A)</p> Signup and view all the answers

What is the distance between two corresponding points on consecutive waves?

<p>The wavelength of light (C)</p> Signup and view all the answers

What type of electromagnetic wave is used in medical imaging?

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

What is the frequency of light?

<p>The number of waves that pass a point in one second (C)</p> Signup and view all the answers

What is the longest wavelength of visible light?

<p>700 nanometers (D)</p> Signup and view all the answers

What is an example of a use of infrared light?

<p>Thermal imaging (C)</p> Signup and view all the answers

What is an example of a use of radio waves?

<p>Radio communication (B)</p> Signup and view all the answers

What is the main difference between wavelength and frequency of light?

<p>Wavelength is the distance between two corresponding points on consecutive waves, while frequency is the number of waves that pass a point in one second. (D)</p> Signup and view all the answers

What is the type of electromagnetic wave with the shortest wavelength?

<p>Gamma Rays (B)</p> Signup and view all the answers

What is the purpose of separating light into its constituent parts?

<p>To analyze the properties of each color (D)</p> Signup and view all the answers

Which of the following is NOT an application of ultraviolet (UV) light?

<p>Cooking (A)</p> Signup and view all the answers

What is the type of electromagnetic wave that is felt as heat?

<p>Infrared (IR) Light (B)</p> Signup and view all the answers

What is the characteristic of visible light that allows us to see it?

<p>Its wavelength is between 400-700 nanometers (A)</p> Signup and view all the answers

What is the main characteristic of the visible spectrum?

<p>It is a range of wavelengths that are visible to the human eye. (C)</p> Signup and view all the answers

What is the purpose of the dispersion of light?

<p>To separate light into its constituent colors. (C)</p> Signup and view all the answers

What is the characteristic of violet light in the visible spectrum?

<p>It has the shortest wavelength and highest frequency. (D)</p> Signup and view all the answers

What is the result of shining a light through a prism?

<p>The light is separated into its constituent colors. (B)</p> Signup and view all the answers

What is the composition of white light?

<p>A combination of the seven colors of the visible spectrum. (D)</p> Signup and view all the answers

What is the purpose of the activity to investigate the visible spectrum?

<p>To demonstrate the composition of white light. (C)</p> Signup and view all the answers

What is the characteristic of the colors of the visible spectrum?

<p>They have different wavelengths and frequencies. (C)</p> Signup and view all the answers

What is the role of the prism in the activity to investigate the visible spectrum?

<p>To separate the light into its constituent colors. (C)</p> Signup and view all the answers

What is the main reason why we see a rainbow when light passes through raindrops in the atmosphere?

<p>Because of the dispersion of light as it passes through the raindrops (B)</p> Signup and view all the answers

What is the main characteristic of the color violet in the visible spectrum?

<p>It has the shortest wavelength and highest frequency (D)</p> Signup and view all the answers

What is the purpose of separating white light into its constituent colors?

<p>To demonstrate the composition of white light (A)</p> Signup and view all the answers

What is the term used to describe the way in which something is made up?

<p>Composition (A)</p> Signup and view all the answers

What is the result of shining a flashlight beam through a prism?

<p>The light is separated into its constituent colors (C)</p> Signup and view all the answers

What is the term used to describe the process of separating a wave into its constituent parts?

<p>Dispersion (B)</p> Signup and view all the answers

What is the main characteristic of the colors in the visible spectrum?

<p>They have different wavelengths and frequencies (C)</p> Signup and view all the answers

What is the purpose of using a white screen or piece of paper in the activity to investigate the visible spectrum?

<p>To display the separated colors of the visible spectrum (D)</p> Signup and view all the answers

What is the main difference between the wavelength of red light and violet light in the visible spectrum?

<p>Violet light has a shorter wavelength than red light. (C)</p> Signup and view all the answers

What is the purpose of using ultraviolet light in forensic science?

<p>To detect and analyze fingerprints. (C)</p> Signup and view all the answers

What is the relationship between the wavelength and frequency of light?

<p>As the wavelength increases, the frequency decreases. (C)</p> Signup and view all the answers

What is the primary application of gamma rays?

<p>Sterilization and emission from radioactive materials. (A)</p> Signup and view all the answers

What is the characteristic of infrared light that makes it useful for remote controls?

<p>It is felt as heat and can transmit information. (B)</p> Signup and view all the answers

What is the primary difference between the visible spectrum and the entire electromagnetic spectrum?

<p>The visible spectrum is a small part of the entire electromagnetic spectrum. (A)</p> Signup and view all the answers

What is the main characteristic of ultraviolet light?

<p>Used in forensics and to sterilize medical equipment (A)</p> Signup and view all the answers

What is the relationship between the wavelength and frequency of light?

<p>As wavelength increases, frequency decreases (B)</p> Signup and view all the answers

What is the main difference between the visible spectrum and the entire electromagnetic spectrum?

<p>The visible spectrum is a small part of the entire electromagnetic spectrum (D)</p> Signup and view all the answers

What is the characteristic of red light in the visible spectrum?

<p>Longest wavelength (C)</p> Signup and view all the answers

What is the primary application of microwaves?

<p>Cooking and satellite transmissions (A)</p> Signup and view all the answers

What is the characteristic of the color violet in the visible spectrum?

<p>Shortest wavelength, highest frequency (B)</p> Signup and view all the answers

What is the purpose of using a prism in the activity to investigate the visible spectrum?

<p>To separate light into its constituent colors (D)</p> Signup and view all the answers

What is the result of combining the colors of the visible spectrum?

<p>White light (D)</p> Signup and view all the answers

Why do we see a rainbow when light passes through raindrops in the atmosphere?

<p>Because of the dispersion of light (C)</p> Signup and view all the answers

More Like This

Use Quizgecko on...
Browser
Open
Browser
Browser