"How Sound is Produced" Sound PPT

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"How Sound is Produced" Sound PPT

Part 1: Making objects make sounds

How do we make gongs and drums sound?

If you press the gong or drum hard, the gong or drum will not make any sound, but if you hit it lightly, it will make sound. Why is this?

How do we make the steel ruler sound?

If you bend the steel ruler forcefully, it will make no sound; if you gently move the steel rule, it will make a sound. Why is this?

How do we make a rubber band sound?

If you stretch the rubber band hard, the rubber band will make no sound; if you flick the rubber band gently, the rubber band will make a sound. Why is this?

How sound is produced PPT, part 2: Do all sound-producing objects vibrate?

Fill the sink with about 2/3 of clean water, gently touch the water surface with a struck tuning fork, and observe any changes in the water surface.

How do the changes in the water surface occur? Share your ideas with your classmates in the group.

An object (such as a tuning fork, a steel ruler, a rubber band, an iron nail, etc.) repeatedly makes a back-and-forth motion under the action of force. This motion is called vibration.

Sound is produced by the vibration of objects.

We have a very sensitive organ in our body that can feel vibrations. Guess where it is?

Vocal cords are the main component of our vocal organs. When making a sound, the vocal cords on both sides are tightened, and the airflow rushing out from the trachea and lungs continuously impacts the vocal cords, causing vibration and sound production.

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For more information about the PPT courseware "How Sound is Produced", please click on the ppt tag of "Sound ppt How Sound is Produced".

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Update Time: 2024-11-19

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

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