Grade 11 Physics: Light
This worksheet covers fundamental concepts of light, including its wave-particle duality, properties, and phenomena like reflection, refraction, and the electromagnetic spectrum.
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Grade 11 Physics: Light
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Read each question carefully and provide your best answer. Show all your work for calculation problems.
1. Which of the following best describes the dual nature of light?
Light behaves only as a wave.
Light behaves only as a particle.
Light exhibits properties of both waves and particles.
Light is a form of sound energy.
2. When light passes from a less dense medium to a more dense medium, what phenomenon occurs?
Reflection
Refraction
Diffraction
Interference
3. The bending of light as it passes from one medium to another is called .
4. The electromagnetic spectrum ranges from long wavelength radio waves to short wavelength rays.
5. Explain the difference between specular and diffuse reflection.
6. A prism separates white light into its constituent colors. What is this phenomenon called? Draw a simple diagram to illustrate this.
7. Light can travel through a vacuum.
True
False
8. The speed of light is constant in all mediums.
True
False
Match the term with its definition.
9. Photon
a. The bouncing back of light from a surface.
10. Reflection
b. A quantum of light; a particle of electromagnetic radiation.
11. Refraction
c. The bending of light as it passes from one medium to another.
12. Describe the different regions of the electromagnetic spectrum, listing them in order of increasing wavelength. Provide at least one application or example for each region.
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