"Protect Our Hearing" Sound PPT Courseware

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"Protect Our Hearing" Sound PPT Courseware

What is noise?

Describe the characteristics of noise and how we experience it.

Noise is noise. It is a type of sound that causes people to be irritated or whose volume is too strong and endangers human health. Usually refers to those unpleasant, annoying sounds. Noise pollution mainly comes from transportation, vehicle horns, industrial noise, construction, social noise such as concert halls, loudspeakers, morning markets and people talking loudly.

Hearing protection common sense

When washing your hair and swimming, avoid sewage entering the ears, which may cause ear inflammation.

When a foreign object enters the ear canal, do not dig it out yourself to avoid damaging the eardrum. Seek medical attention as soon as possible.

Avoid listening to earphone radios or tape recorders for long periods of time, and the volume should be adjusted to moderate or below.

In noisy environments, cover your ears with your hands or wear ear protection.

Only take medications under the guidance of a doctor, as overdose of some medications may cause tinnitus or hearing loss.

When you notice ear discomfort, such as pain or pus discharge, you should seek medical advice as soon as possible.

Think about it: how to control the sound of objects

Put a few beans inside a plastic bottle to make a sound-making device. Think about how to make the sound of the generating device softer?

Cover it with your hands or wrap it in paper

Place some wooden boards or books between the bottle and your ears

Put cotton in your ears or wear earplugs

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"Protecting Our Hearing" Sound PPT:

"Protecting Our Hearing" Sound PPT Part One: Group Discussion How to stay away from noise? Cover your ears, wear protective devices, listen to pleasant music, and stay away from the sound source. Tip: Frequent use of earplugs to listen to music can cause fatigue or even damage to the hearing organs, thus...

"Protecting Our Hearing" Sound PPT Courseware 5:

"Protecting Our Hearing" Sound PPT Courseware 5 What is noise? Describe the characteristics of noise and how we experience it. Noise is noise. It is a type of sound that is too high or too strong to cause irritability and endanger human health. Usually refers to those unpleasant, annoying sounds. noise..

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Update Time: 2024-09-19

This template belongs to science courseware Fourth Grade Science Volume 1, Textbook Edition industry PPT template

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