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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 8
A drum is hit softly and then hard. Which hit produces a sound wave with higher amplitude?
A person hears a sound at 30 decibels and another at 60 decibels. How much more intense is the second sound?
A sound wave has an amplitude of 0.5 cm. What is its amplitude in millimeters?
A sound wave has an amplitude of 2 units. Another has an amplitude of 4 units. Which is louder?
A drum is hit softly and then hard. Which hit produces a sound wave with higher amplitude?
A person hears a sound at 30 decibels and another at 60 decibels. How much more intense is the second sound?
A sound wave has an amplitude of 0.5 cm. What is its amplitude in millimeters?
A sound wave has an amplitude of 2 units. Another has an amplitude of 4 units. Which is louder?
Loudness of a sound depends on which property of the sound wave? (1) Frequency (2) Amplitude (3) Wavelength (4) Speed
Which of the following best describes loudness? (1) The frequency of a sound (2) The subjective perception of sound intensity (3) The speed of sound (4) The wavelength of sound
Which of the following is NOT a unit for measuring amplitude? (1) Meter (2) Centimeter (3) Decibel (4) Millimeter
Which of the following is the best definition of amplitude? (1) The number of waves per second (2) The maximum displacement from the rest position (3) The distance between two crests (4) The speed of the wave
Fill in the blank: Loudness is measured in ________.
Fill in the blank: The ________ the amplitude of a sound wave, the louder the sound.
Fill in the blank: The amplitude of a sound wave is the maximum displacement of the particles from their ________ position.
Fill in the blank: The decibel scale is a ________ scale used to measure loudness.
True or False: Amplitude can be measured in meters.
True or False: Increasing the amplitude of a sound wave will make the sound softer.
True or False: Loudness can be measured directly with a ruler.
True or False: Loudness is a subjective property, while amplitude is an objective property of a sound wave.