Psyc 230 Uiuc Exams 2 With Actual Correct Questions And Verified Detailed Rationales Answers 2024

PSYC 230 UIUC EXAMS 2 WITH ACTUAL CORRECT QUESTIONS AND VERIFIED DETAILED RATIONALES ANSWERS 2024 (NEWEST) ALREADY GRADED A+ Sound stimulus the periodic variations in air pressure traveling out from the source Sound waves the waves of pressure changes that occur in the air as a function of the vibration of a source Medium of sound A material (solid, liquid, or gas, or combination of these) through which a wave travels. In water, sound travels 4x faster than it does through air. pure tones A sound wave in which changes in air pressure follow a sine wave pattern. amplitude the difference between the peak and the baseline of a wave (height of wave). loudness Perceptual experience of amplitude Loud sounds can be dangerous Prolonged contact to sounds over 85 dB can eventually cause hearing loss. Sounds louder than 120 dB are painful. Sounds louder than 130 dB will generally result in immediate and permanent hearing loss. Frequency The number of cycles in a sound stimulus that occur in 1 second Pitch The subjective experience of frequency what unit is used to measure sound amplitude? Hertz (Hz) What is the hearing range of humans and how does it change with age?20-20,000