Abeka Science: Matter and Energy test 5 (updated version) || 100%
Detailed Answers.
What is the intensity on the way human ear perceives sound? correct answers (b) loudness
Which of the following frequency pairs would you expect to be most consonant? correct answers
(b) 128 Hz, 256 Hz
Movies and television shows often include sounds from rocket engines being heard in the
vacuum of space. Why is this incorrect? correct answers (a) Sound cannot travel through a
vacuum
What is the result when two notes interfere harmoniously? correct answers (c) consonance
What term describes a situation in which a driving frequency and a natural frequency are the
same or nearly the same? correct answers (d) resonance
What is the substance through which a wave transfers its energy? correct answers (b) medium
A wave is traveling down a rope. Which of the following changes will cause a point on the rope
to move father? correct answers (a) increase amplitude
What term refers to sound that is too low frequency to be heard? correct answers (a) infrasonic
What technique uses the reflection of sound to calculate distance? correct answers (b) echo
ranging
What wave behavior causes beats when two notes are played? correct answers (b) interference
Detailed Answers.
What is the intensity on the way human ear perceives sound? correct answers (b) loudness
Which of the following frequency pairs would you expect to be most consonant? correct answers
(b) 128 Hz, 256 Hz
Movies and television shows often include sounds from rocket engines being heard in the
vacuum of space. Why is this incorrect? correct answers (a) Sound cannot travel through a
vacuum
What is the result when two notes interfere harmoniously? correct answers (c) consonance
What term describes a situation in which a driving frequency and a natural frequency are the
same or nearly the same? correct answers (d) resonance
What is the substance through which a wave transfers its energy? correct answers (b) medium
A wave is traveling down a rope. Which of the following changes will cause a point on the rope
to move father? correct answers (a) increase amplitude
What term refers to sound that is too low frequency to be heard? correct answers (a) infrasonic
What technique uses the reflection of sound to calculate distance? correct answers (b) echo
ranging
What wave behavior causes beats when two notes are played? correct answers (b) interference
