Podcast
Questions and Answers
What characteristic of light distinguishes it as a wave?
What characteristic of light distinguishes it as a wave?
- Light can travel in a vacuum.
- Light has wavelength and frequency. (correct)
- Light can carry mass.
- Light can bend around objects.
What is the amplitude of a wave?
What is the amplitude of a wave?
- The height of the wave from the equilibrium position. (correct)
- The distance between two crests.
- The lowest point of the wave.
- The speed at which light travels.
In reflection, what happens to the light that does not bounce back?
In reflection, what happens to the light that does not bounce back?
- It disperses into multiple directions.
- It travels straight through the surface.
- It is refracted and changes direction.
- It is completely absorbed by the surface. (correct)
What describes the crest of a wave?
What describes the crest of a wave?
When does light not travel in straight lines?
When does light not travel in straight lines?
Flashcards
Light as energy
Light as energy
Light is a form of energy that travels as a wave.
Light's path
Light's path
Light usually travels in straight lines.
Reflection
Reflection
Light bouncing off a surface.
Wave crest
Wave crest
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Wave trough
Wave trough
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Study Notes
Light as Energy
- Light is a form of energy, specifically a wave.
- Light travels in straight lines.
Light Waves and Properties
- Light waves have characteristics like wavelength and frequency.
- A crest is the highest point of a light wave.
- A trough is the lowest point of a light wave.
- Amplitude is the height of a light wave.
Light and Reflection
- Light does not always travel in a straight line.
- Reflection occurs when light bounces off a surface.
- Not all light bounces back perfectly—only part of it does.
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