Back
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

decibel metre

Primary Information
Secondary Information

Definition

A decibel meter is a device that measures the loudness of sound. It is a type of sound level meter that uses a logarithmic scale to measure sound pressure levels. The decibel meter has a microphone that converts sound waves into electrical signals. These signals are then amplified and displayed on a meter.

The decibel meter is used to measure a wide range of sounds, from the softest whispers to the loudest explosions. It is also used to measure the loudness of music, traffic, and other environmental noise.

The decibel meter is a valuable tool for measuring and monitoring sound levels. It can be used to identify and control noise pollution and to ensure that sound levels are safe for human hearing.

How can the word be used?

The decibel meter showed that the sound level was at 100 decibels.

decibel metre

Different forms of the word

The word "decibel meter" has only one form, but it can be used as a noun or as an adjective.

As a noun, "decibel meter" refers to an instrument that measures sound intensity in decibels.

As an adjective, "decibel meter" can be used to describe something that measures sound intensity in decibels. For example, you might say that "the decibel meter showed that the sound level was at 100 decibels.".

Etymology

The word "decibel meter" is a portmanteau of the words "decibel" and "meter". The word "decibel" is a unit of measurement for sound intensity, while the word "meter" is a unit of measurement for length, but it is also used to refer to an instrument that measures something.

Question

If a decibel meter reading is too high what might the repercussions be?

AQA Science Exam Question and Answer

Question:

Question: Describe the purpose and function of a decibel meter in measuring sound levels. Explain how this instrument works and discuss two scenarios where it could be used to monitor and assess sound intensity in real-life situations.

Answer:

  • A decibel meter, also known as a sound level meter, is an instrument used to measure the intensity of sound in decibels (dB). It helps quantify the volume or loudness of sound in various environments.
  • The decibel meter works by capturing sound waves through a microphone. It then converts these sound waves into electrical signals, which are further processed and displayed as a numerical value corresponding to the sound level in dB.

Two real-life scenarios where a decibel meter can be useful are:

  • Industrial Settings: Decibel meters are essential in monitoring noise levels in industrial workplaces, ensuring that they comply with safety regulations to protect workers' hearing health.
  • Environmental Noise Assessment: In urban areas, decibel meters are used to assess and control noise pollution from traffic, construction, and other sources, helping to maintain a suitable soundscape for residents and wildlife.

Overall, the decibel meter plays a critical role in measuring sound intensity accurately, promoting awareness of potential hearing hazards, and fostering a healthier acoustic environment.