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Loudness and Amplitude

Physics ⇒ Waves and Sound

Loudness and Amplitude starts at 7 and continues till grade 12. QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Loudness and Amplitude. How you perform is determined by your score and the time you take. When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 7
A person increases the volume on a speaker. What happens to the amplitude of the sound waves produced?
A sound is measured at 90 dB. Is this considered loud or soft?
A sound wave has an amplitude of 2 units. Another has an amplitude of 4 units. Which is louder and by how much?
A sound wave has an amplitude of 3 units. If the amplitude is increased to 6 units, by what factor does the loudness increase?
A teacher claps softly and then loudly. What changes in the sound wave between the two claps?
Describe the relationship between amplitude and loudness.
Explain why shouting is louder than whispering.
A teacher claps softly and then loudly. What changes in the sound wave between the two claps?
Which instrument is used to measure the loudness of sound? (1) Thermometer (2) Barometer (3) Sound level meter (4) Voltmeter
Which of the following best describes amplitude? (1) The number of waves per second (2) The distance from the rest position to the crest (3) The length of one wave (4) The speed of the wave
Which of the following is NOT a unit of loudness? (1) Decibel (2) dB (3) Hertz (4) None of these
Which of the following is NOT affected by amplitude? (1) Loudness (2) Pitch (3) Energy (4) Intensity
Fill in the blank: A sound wave with a small amplitude will be perceived as ________.
Fill in the blank: Loudness is measured in units called ________.
Fill in the blank: The ________ of a sound wave is the height of the wave from its rest position.
Fill in the blank: The ________ the amplitude, the louder the sound.
True or False: A sound with a higher amplitude always has a higher frequency.
True or False: Amplitude is the maximum distance a particle moves from its rest position in a wave.
True or False: Loudness is a physical property of sound, not a perception.
True or False: Loudness is a subjective property, while amplitude is an objective property.