PHYSICS DEFS.

WAVE

• anything that disturbs a medium

LIGHT

• Transmitted by a transverse wave.

SOUND

• a wave that is formed when a sound is made and that moves through the air and carries the sound to your ear.

AMPLITUDE

• a measurement that indicates the movement or vibration of something (such as a sound wave or a radio wave)

PITCH

• how high or low a sound is

FREQ. & PERIOD

• Frequency- How many cycles of a wave per sec, f=1/t
• Period- How long it takes for one cycle of a wave to occur t=1/f

DAMPING

• When sound gets very quiet or inaudible
• When a wave stops
• Due to friction

DIFFRACTION

• When a wave passes through a small opening & spreads out

REFLECTION

• Light bounces

REFRACTION

• Light bends

INTERFERENCE

• Two identical waves hit and make a bigger wave
• Two opposite waves hit each other, kills both waves

ECHO

• A sound wave reflection

REVERBRATION

• A reechoed sound
• The fact of being reverberated or reflected

DOPPLER EFFECT

• The farther a sound travels, the quieter and lower a sound seems

RESONANCE

• The quality in a sound of being deep, full, and reverberating.

ELECTROMAGNETIC SPECTRUM

• The range of wavelengths or frequencies over which electromagnetic radiation extends