We often use decibels, a measure of sound pressure, to describe how loud something is - but loudness is caused by how we perceive sounds, and the two often don't line up.

Scientists dissect the human scream for the first time, and also re-think what was thought to be the biggest dinosaur in the world.

Scientists dissect the human scream for the first time, and also re-think what was thought to be the biggest dinosaur in the world.

Whales have a lot of the same ear parts as humans, but they are capable of making sounds that could easily shatter a human's eardrums. So why are they seemingly immune from their own sense-shattering sounds?

Mr. Andersen explains how sound waves are created and perceived. A brief discussion of pitch and loudness are included. A generated sound of varying pitches is also included.

One focus of the research program is to better understand how human disturbance and noise might impact giant pandas, both in the wild and at the zoo.

A research program examines how human disturbance and noise impacts giant pandas, both in the wild and at the zoo.

One focus of the research program is to better understand how human disturbance and noise might impact giant pandas, both in the wild and at the zoo.

Discover how exposure to high-volume sounds can damage hearing.
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Physical processes - Sound - Da
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Learning Points
High volume sounds can
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amage ears and cause hearing...

This video explains what a scatter graph/plot is and how to plot them. A practice question is provided at the end of the video.

The video differentiates between hearing and listening, explaining how our ears constantly pick up sounds while our brain chooses what to focus on. It covers how sound loudness is measured in decibels, with examples from everyday life,...

In episode 33, Charlie and Jordan explore the zoolophone--a 3-D printed metallophone with playful animal shapes--and how it was created by optimizing shapes to control sound.

Upon viewing the What is Sound video series, students will be able to do the following: Understand that sound is produced when matter vibrates. Explain that sound energy can travel through air, liquids, and solids, which are generally...

This video explains how sound waves can be displayed on an oscilloscope and how the amplitude and frequency of the waveform relate to the loudness and pitch of the sound. The video uses examples of different sound waves and the...

When you hear the roar of traffic, the bark of a dog, or your teacher's voice, you are experiencing sound. This program uses colorful animations to explore important characteristics of sound, including intensity, loudness, pitch, and...

This video explains the basics of sound and how it is produced, transmitted, and perceived. Explore the physics of sound and acoustics. Acoustics is the study of mechanical waves and how they move through gas, liquids, and solids....

It explains the characteristics of sound, namely amplitude, time period and frequency of a vibration. It talks about loudness, pitch and quality of sound.

INTERVIEW - Bubba Watson talks about the Oakley lightness and loudness, Raphael Peck (R) at Masters Champion Bubba Watson Joins Oakley Golf at The Gansevoort Park Ave on April 02, 2013 in New York, New York (Footage by WireImage...