Waves Flashcards
Threshold of Pain
sound at 120 dB
Dual Nature
Light acts both as a wave and as a particle.
Electron Transitions
when atoms absorb and release energy, electrons move from the ground state to higher orbitals and back again.
Ex: neon lights
Mechanical Waves
Physical waves that travel through a medium.
Ex: sound and water waves
Wave
a disturbance that transports energy as it moves through space and time
Farsightedness
A vision problem in which a person cannot see nearby objects without correction.
Diffuse Reflection
a reflection in which no image is seen
Ex: reflection from a wall
Reflection (of Light)
The bouncing of light off of a surface
Ex: Light reflects off of a mirror
Magnetic Poles
the north and south ends of a magnet
Decibel
The unit for the loudness of sound and is abbreviated dB.
Voltage / Potential Difference / Potential
Volts (V) are used to measure the difference in energy per charge between any two places in a circuit.
Circuit Diagram / Schematic
a drawing that uses symbols to show how components should be connected in a circuit
Amplitude
the most a particle of the medium can move during a vibration (measured from a point where the medium is not moving to one crest).
Pitch
how high or low the sound seems to a human ear
Resistance
A device that reduces/limits/controls the current in a circuit, measured in ohms (Ω).