Waves Flashcards
What type of radiation has a wavelength of approximately 10 meters?
Radio
Radio waves are used for communication and broadcasting.
What is the wavelength range of microwaves?
10^-2 meters
Microwaves are used in cooking and radar technology.
What is the approximate wavelength of infrared radiation?
10^-5 meters
Infrared radiation is associated with heat.
What is the wavelength of visible light?
0.5×10^-6 meters
Visible light is the portion of the electromagnetic spectrum that can be seen by the human eye.
What wavelength corresponds to ultraviolet radiation?
10^-8 meters
Ultraviolet radiation can cause skin damage and is used in sterilization.
What is the approximate wavelength of X-rays?
10^-10 meters
X-rays are used in medical imaging.
What is the wavelength of gamma rays?
Less than 10^-12 meters
Gamma rays have the highest energy in the electromagnetic spectrum.
At what temperature does radiation become most intense at 1 K?
-272 °C
This temperature is close to absolute zero.
What temperature corresponds to 100 K?
-173 °C
This is still near absolute zero.
What is the temperature at which radiation is most intense at 10,000 K?
9,727 °C
This temperature is typical for stars.
What is the temperature at which radiation is most intense at 10,000,000 K?
-10,000,000 °C
This temperature is theoretical and not typically encountered.
What type of wave has particles that move back and forth in the same direction as the wave travels?
Longitudinal Waves
Sound waves are a common example of longitudinal waves.
What type of wave causes the matter to move at right angles to the direction of wave travel?
Transverse Waves
Ocean waves are a common example of transverse waves.
Do electromagnetic waves require a medium to transfer energy?
No
Electromagnetic waves can travel through a vacuum.
Do mechanical waves require a medium to transfer energy?
Yes
Mechanical waves travel through substances such as air, water, or solids.
What is the highest point on a wave called?
Crest
The crest is a key feature in wave analysis.
What is the lowest point on a wave called?
Trough
The trough is the opposite of the crest.
What is the amplitude of a wave?
Distance from rest line to crest/trough
Amplitude is a measure of the energy of the wave.
What does wavelength measure?
Distance from Crest - Crest / Trough - Trough
Wavelength is a critical parameter in wave physics.
What part of a longitudinal wave is where particles are crowded together?
Compression
Compression occurs in sound waves.
What part of a longitudinal wave is where particles are spread apart?
Rarefaction
Rarefaction is the opposite of compression.
What is frequency in the context of waves?
The amount of times a wave passes a point in a given amount of time
Frequency is measured in Hertz (Hz).
What relationship exists between wavelength and frequency?
Long Wavelength correlates with Low Frequency
This inverse relationship is fundamental in wave theory.
What type of radiation has a wavelength of approximately 10 meters?
Radio
Radio waves are used for communication and broadcasting.
