Sound
Sounds that have a frequency lower than the human range of hearing are called ______, while higher ones are called ______
Infrasound and Ultrasound
Sound navigation and ranging, a system that uses acoustic signals and echoes to determine the location of objects or to communicate is called
Sonar
A photon is
a particle of light
The use of reflected radio waves to detect objects in the air
radar
Pitch
The SI Unit for the intensity of a sound is
Decibel
What type of waves are used for GPS?
Radio waves
What type of waves are used to sense heat?
Infrared
Sound is what kind of wave?
Transverse
Why does sound travel faster in solids than in liquids or gasses?
Which type of wave has the second most amount of energy?
X-ray
The longer the wavelength of a particle light, the less...
energy/frequency it has
The phenomenon that occurs when two objects naturally vibrate at the same frequency is called
Resonance
Which part of the ear sends electrical signals from vibrations from sounds?
Basilar membrane
This wave is emitted by the sun and causes sunburns
Ultraviolet
Which state of matter does Light travel fastest through?
Gas
The speed of sound in air is 1150 m/s. A submarine using sonar sends out a sound wave and receives its reflection 2.2 seconds later. How far away is the object the sonar detected?
(1150 m/s * 2.2 s)/2 = 1265 m
Explain how the red light blue light experiment suggests light is not just a wave
Blue light moves electrons, suggesting it has mass. Waves are not supposed to have mass.