An echo returns from a building after 0.2 s. If sound travels at 340 m/s, how far away is it?
A) 68 m B) 170 m C) 17 m D) 34 m Answer: D Explanation: The sound travels out and […]
Every Day Science, Sound
Sound
Every Day Science, Sound
An echo returns from a cliff after 1 s. If sound travels at 340 m/s, how far away is it?
A) 340 m B) 680 m C) 170 m D) 85 m Answer: C Explanation: The sound travels out and […]
Every Day Science, Sound
An echo returns from a mountain after 2 s. If sound travels at 340 m/s, how far away is it?
A) 340 m B) 680 m C) 170 m D) 1360 m Answer: A Explanation: The sound travels out and […]
Every Day Science, Sound
An echo returns from a wall after 0.5 s. If sound travels at 340 m/s, how far away is it?
A) 170 m B) 85 m C) 340 m D) 42.5 m Answer: B Explanation: The sound travels out and […]
Every Day Science, Sound
Can sound travel through an ideal vacuum?
A) No B) Yes, at the speed of light C) Only at night D) Only as visible light Answer: A […]
Every Day Science, Sound
Identify the term for folds in the voice box that vibrate to produce voice.
A) Wave speed B) Sonar C) Loudness D) Vocal cords Answer: D Explanation: Vocal cords means folds in the voice […]
Every Day Science, Sound
Identify the term for repeated back-and-forth motion about a position.
A) Echo B) Cochlea C) Rarefaction D) Vibration Answer: D Explanation: Vibration means repeated back-and-forth motion about a position. A […]
Every Day Science, Sound
Identify the term for strong vibration when a driving frequency matches a natural frequency.
A) Frequency B) Ultrasound C) Decibel D) Resonance Answer: D Explanation: Resonance means strong vibration when a driving frequency matches […]
Every Day Science, Sound
Identify the term for the unit for one wave cycle each second.
A) Reverberation B) Pitch C) Infrasound D) Hertz Answer: D Explanation: Hertz means the unit for one wave cycle each […]
Every Day Science, Sound
What aspect of a sound wave mainly determines loudness?
A) Wavelength alone B) Amplitude C) Frequency alone D) Color Answer: B Explanation: Greater pressure amplitude generally produces a louder […]