Podcast
Questions and Answers
Which of the following correctly describes the relationship between wavelength and frequency?
Which of the following correctly describes the relationship between wavelength and frequency?
- Wavelength and frequency are directly proportional.
- As wavelength increases, frequency increases.
- As wavelength increases, frequency decreases. (correct)
- As wavelength decreases, frequency decreases.
Light requires a medium, such as air or water, to travel from one place to another.
Light requires a medium, such as air or water, to travel from one place to another.
False (B)
Define the term 'amplitude' in the context of a light wave.
Define the term 'amplitude' in the context of a light wave.
The amplitude is the height of a crest or the depth of a trough, measured from the rest position.
The distance from one crest of a wave to the next is known as the ______.
The distance from one crest of a wave to the next is known as the ______.
Match the following types of electromagnetic radiation with their applications:
Match the following types of electromagnetic radiation with their applications:
Which type of electromagnetic wave has the shortest wavelength and highest energy?
Which type of electromagnetic wave has the shortest wavelength and highest energy?
What property of visible light allows objects to be seen in a mirror?
What property of visible light allows objects to be seen in a mirror?
Infrared radiation is also known as heat radiation and is emitted by all objects.
Infrared radiation is also known as heat radiation and is emitted by all objects.
Name two technologies that utilize lenses and tubes to magnify objects.
Name two technologies that utilize lenses and tubes to magnify objects.
The separation of visible light into its constituent colors is known as ______.
The separation of visible light into its constituent colors is known as ______.
Flashcards
Wave Model of Light
Wave Model of Light
A type of wave that travels through empty space to transfer energy.
Wavelength
Wavelength
The distance from crest to crest or trough to trough in a wave.
Crest
Crest
The highest point of a wave.
Trough
Trough
Signup and view all the flashcards
Amplitude
Amplitude
Signup and view all the flashcards
Frequency
Frequency
Signup and view all the flashcards
Electromagnetic Spectrum
Electromagnetic Spectrum
Signup and view all the flashcards
Radio waves
Radio waves
Signup and view all the flashcards
Rectilinear Propagation
Rectilinear Propagation
Signup and view all the flashcards
Microscope
Microscope
Signup and view all the flashcards
Study Notes
- Light is a wave that travels through empty space transferring energy.
Visible Light
- Wave that can be seen.
Wave Diagram
- Crest, Trough, Wavelength, Rest Position and Amplitude are elements
Wavelength
- Distance from crest to crest or trough to trough.
Crest
- Highest point of a wave.
Trough
- Lowest point of a wave.
Amplitude
- Height of a crest or depth of a trough, from rest position.
- Amplitude relates to energy carried by a wave. Higher amplitude equals greater energy transported.
Frequency
- Number of repetitive motions or oscillations in a given time.
- Measured in Hertz (Hz).
Frequency and Wavelengths
- Have inverse relationships.
- Longer wavelength means lower frequency.
- Shorter wavelength means higher frequency.
Electromagnetic Spectrum
- Transmission of energy as waves, from longest radio waves to shortest gamma rays.
- Described by frequency and wavelength.
Radio Waves
- Longest wavelength, lowest energy and frequency.
Microwaves
- Water particles in food absorb microwaves, vibrate, and heat up.
- Can only warm foods with water content.
Infrared
- Also known as heat radiation.
- Every object emits infrared radiation.
Ultraviolet Waves
- Help the body make vitamin D
- Too much UV can cause skin burn and cancer
- Used to treat jaundice in babies.
X-Rays
- Used by doctors to detect broken bones.
Gamma Rays
- Highest energy and frequency.
- Found in nuclear explosions.
- Used in medicine to kill cancer cells.
Microscope Technology
- Uses lenses and tubes to magnify objects too small to see with the naked eye.
Telescope Technology
- Used for viewing objects far in space.
Properties of Visible Light
- Rectilinear Propagation: travels in a straight line.
- Reflects: objects show in a mirror.
- Refracts: bends in water or other mediums.
- Disperses: separates into colors of the spectrum.
- Vacuum: travels in a vacuum, does not need a medium.
- Travels to different degrees through transparent, translucent, and opaque materials.
Visible Spectrum Colors
- Red, Orange, Yellow, Green, Blue, Indigo, Violet (ROY G. BIV).
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
