Definitions
Define Wavelength
The distance between two crests or two troughs of a wave.
What kind of sound waves have a frequency higher than human beings can hear?
Ultrasonic Waves
What is the speed of light?
3 x 108 m/s
Which would have a higher frequency?
Batman singing bass, or this woman?
The woman
Which would have a higher amplitude?
A soundwave created by a butterfly flapping its wings, or a soundwave created by a metal water bottle hitting the ground?
Metal Water Bottle
Define Virtual Image
An image formed from the extrapolation of light rays.
What kind of sound waves have a frequency lower than human beings can hear?
Infrasonic Waves
What happens to light, such as light in space, when it moves away from the observer?
It Experiences Redshift
What is the name of a change in an observed frequency caused by the motion of the wave and/or observer?
The Doppler Effect
How many nanometers are in one meter?
One Billion
Define Transverse Wave
A wave whose oscillation is perpendicular to its translational motion.
What is the speed of sound if it was hypothetically -547 degrees Celsius outside?
Zero/Nonexistent/It Changes Direction And Only People Behind You Can Hear You
What colors of visible light have the largest wavelengths?
Red, Orange, Yellow
If Mr. Matthew was being attacked by a bald eagle, and the bald eagle screeched as it flew towards him, would Mr. Matthew hear the screech at a higher pitch, a lower pitch, or an equal pitch to an observer standing off to the side?
Higher pitch since the object is coming towards the observer.
What is Planck's constant in electron volts?
4.14 x 10-15
Define Longitudinal Wave
A wave whose oscillation is parallel to its translational motion.
Does sound travel faster through air or through a brick wall? Why?
Brick Wall -> Because It Is Denser.
What is one type of nonvisible light wave?
Gamma Rays, X-Rays, UV Rays, Infrared Waves, Microwaves, or Radio Waves.
A sound wave has a wavelength of 0.78 meters, and it is travelling in air that is 12 degrees Celsius. What is the frequency of the wave?
434 Hz
A light with a frequency of 9.3 x 1014 Hz is shone on zinc, whose work function is 4.3 eV. What is the theoretical maximum kinetic energy of the electrons? Will the electrons be ejected?
Define Wave-Particle Duality
The concept that light (as well as many subatomic particles) has the properties of both particles and waves.
You see a lightning bolt, and then 0.98 seconds alter, you hear the thunder. If the air is 18 degrees Celsius outside, how far away did the lightning strike?
335.36 meters
Green light has a wavelength of 510 nanometers. What is its approximate frequency?
588,235,294,117,647 Hz
An angry gorilla runs towards you, and utters a ferocious howl in your direction. You are terrified and stand still, frozen in fear. The gorilla runs towards you at 12 meters per second, and the air is 20 degrees Celsius. If the gorilla's roar normally has a frequency of 650 Hz, what frequency do you hear?
Speed of Sound: 343.42 m/s
Frequency Observed: 673.54 Hz
Light with a frequency of 1.86 x 1015 Hz is shone on uranium, causing electrons to shoot off. If the maximum kinetic energy of the electrons is 4.10 eV's, what is the work function of uranium?
3.6 eV