Froggy Jumps Sound Concepts QuizOnline version Test your knowledge on the basic concepts of sound with this quiz game! by Ariadna Sánchez 1 What is the definition of sound? a The movement of air molecules. b Vibrations that travel through the air or another medium and can be heard when they reach a person's c The absence of noise. 2 What is the unit of measurement for sound intensity? a Decibel (dB) b Hertz (Hz) c Watt (W) 3 What is the frequency range of human hearing? a 50 Hz to 50,000 Hz b 1 Hz to 1,000 Hz c 20 Hz to 20,000 Hz 4 What is the term for the quality of a sound that distinguishes it from other sounds of the same pitch and loudness? a Frequency b Timbre c Amplitude 5 What is the measure of how often something occurs in a defined period of time? a Amplitude b Frequency c Resonance 6 What is the term for the bouncing back of sound waves when they hit a surface? a Transmission b Reflection c Absorption 7 What is the difference of sound between water versus air? a The sound in air is dBre1 MPa and in water dBre20MPa, then sound travels faster in air than water b None of answers c The sound in air is dBre 20MPa and in water dBre1MPa, then sound travels faster in water than air. 8 What is the term defined as the distance from rest to crest or from rest to through and can also be referred to as the wave height? a frequency b intensity c amplitude 9 What is the correct asseveration? a none of answers b Large amplitude corresponds to a short amount of energy c Large amplitude corresponds to a large amount of energy 10 What is the difference between lower frequency and higher frequency? a None of answers b Lower frecuency travel grater distance and higher frequencies attenuate more quickly. c Lower frequencies travel short distances and higher frequencies travel long distances. 11 What is the unit of measurement for sound frequency? a Watt (W) b Decibel (dB) c Hertz (Hz)
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