Waves
What is the equation for wave frequency?
f = v/λ
What's the difference between a EM wave and a Mechanical wave?
EM waves don't have to use a medium to travel.
Mechanical waves have to travel through a medium.
True or False
True
the entire range of electromagnetic waves.
Electromagnetic Spectrum
Define transverse wave
What is the equation for wavelength?
V/F
Are EM waves longitudinal or transverse?
Transverse
Mechanical waves can only be longitudinal, not transverse.
True or False
False
EM waves with longer wavelengths carry more energy.
True or False
False
Define Longitudinal wave
a wave vibrating in the direction of propagation
What is the equation for wave velocity?
Wavelength x Frequency
How fast do EM waves travel
The speed of light (300mil m/s)
What are the three types of mechanical waves?
Longitudinal, transverse, Surface
Is an EM wave actually a wave or a particle.
Has properties of both
What is the main example of a surface wave we discussed?
Seismic wave (earthquake)
What is a wave?
A disturbance in matter that transfers energy
How are EM waves produced?
Accelerating electric charges.
How do the particles of a medium move when a wave passes through?
They vibrate in place
Name the EM wave rays in order from weakest to strongest.
radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays
What is the relationship between frequency and wavelength
They are inversely related. Higher frequency = lower wavelength.
List the different types of wave interactions.
Diffraction, refraction, reflection
How does an EM wave begin?
An electrically charged particle begins to vibrate.
If you shake one end of a rope up and down, a wave passes through the rope. Which type of wave is it?
Transverse
Name the EM radiation visible to the human eye (colors) in order from longest to shortest wavelength.
Red, Orange, Yellow, Green, Blue, Indigo, and Violet
What does the term ionizing mean?
Carries enough energy to remove electrons from atoms.