BiyUDORMIES1

A scattered reflection of light from an irregular surface or an erratic dispersion through a translucent material

• Diffusion
• Reflectance
• Absorptance
• Diffraction

Anything physical or an environment that interferes with communication or listening. A poor acoustical environment can be a barrier to good listening and especially so for persons with a hearing impairment

• Baffle
• Barrier
• Reflection
• Soundproofing

The rate of flow of visible light per unit time expressed in lumens

• Foot lambert
• Luminous flux
• Lambert
• Nanometer

The distance an elastic body or spring moves when subjected to a static or dynamic force. Typical units are inches or mm.

• Deflection
• Echo flutter
• Hertz
• Octave bands

The physical resonance to sound pressure and intensity.

• Impact
• Loudness
• Noise
• Volume

A high intensity discharge lamp producing light by means of an electric discharge in sodium vapor

• mercury lamp
• metal halide lamp
• sodium lamp
• cold-cathode lamp

The energy expended during the sound wave vibration

• Intensity
• Loudness
• Noise
• Sound pressure

A type of light which gives yellow light; the filament inside the bulb provides a small, concentrated glow of light when an electric current heat the filament to the glowing point

• decorative lighting
• general lighting
• direct lighting
• incandescent lighting

The distance between two identical positions in the cycle or wave.

• Frequency
• Hertz
• Reverberation time
• Wavelength

A lighting method that makes used of lights to develop different moods/accent objects for interest

• decorative lighting
• general lighting
• direct lighting
• incandescent lighting