"How Sound is Produced" Sound PPT

Description

"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.

Keywords: Free download of Chinese PPT courseware for the first volume of the fourth grade of the textbook version, how sound is produced PPT download, sound PPT download, .PPT format;

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

"Protecting Our Hearing" Sound PPT Download:

"Protect Our Hearing" Sound PPT Download Part One: Introduction of New Lessons Do students usually like to play with toys? Today we are also going to play with toys. We are not only competing to see who can play well, but also competing to see who has gained more knowledge while playing. today..

"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...

"How We Hear Sound" Sound PPT Download:

"How We Hear Sounds" Sound PPT Download Part 1: Introduction to the new lesson How do ears hear sounds? The vibration of the object produces sound, which is transmitted through the air to our ears in the form of waves. So how do the ears hear the sound?

File Info

Update Time: 2024-09-08

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

Preview