Curated Video
What is Sound?
Sounds can vary greatly: extremely quiet or deafeningly loud, high and shrill to low and booming. Why are they so different? Physics - Waves - Learning Points. Sound is a vibration passed to and fro along particles forming a wave. It can...
Curated Video
Measuring Music
We use a sounding board called a sonometer to investigate how the pitch of sound changes when the length of wire being plucked changes. We change the position of a moveable bridge to change the length of the wire and discover that...
Curated Video
Changing pitch – Did you know?
Did you know that a person singing at the right frequency at a high volume can cause a glass to shatter? Physical processes - Sound - Changing pitch Learning Points At certain frequencies sound waves can shatter glass. A Twig Tidbit Film...
Curated Video
How does sound travel? – What happens next?
A ringing alarm clock is placed within a vacuum chamber ... what happens next? Physical processes - Sound - How does sound travel? A Twig Tidbit Film - What happens next? A short section of film is played and the children have to guess...
Curated Video
Sound is energy
Understand that sound is a form of energy created by vibrations. Physical processes - Sound - What is sound? Learning Points Sound is a form of energy. Sound travels in waves away from the source. Sound waves travel in all directions....
Curated Video
What is a solid?
What properties do solids, liquids and gases have? Material processes - Solids, liquids and gases - Solids Learning Points Solids have a fixed shape that can only be changed by external force. Solids have a fixed volume. The molecules in...
Curated Video
Types of Wave
By the end of this learning object, the student will be able to: Summarize the types of wave motion and its law.28774
Wonderscape
Understanding How We Perceive Sound
Delve into the fascinating process of hearing and how our ears transform sound waves into signals for our brains to interpret. Learn about the intricate anatomy of the ear and how it enables us to experience the richness of sound. Sound...
Wonderscape
Exploring Characteristics of Sound Waves
Discover the characteristics of sound waves, including wavelength, frequency, and pitch. Learn about the Doppler effect and its impact on sound perception. Explore how acoustics influence building design and sound control. Sound part 3
Wonderscape
Exploring Sound: Understanding its Nature and Transmission
Dive into the world of sound and learn about its properties, production, and transmission. Discover how vibrations create sound waves and how they travel through different mediums. Sound part 1
Curated Video
Pitch and Volume
Dr. Forrester explains the qualities of sound, pitch and volume, and how sound is created through vibrations.
Curated Video
Can You Hear Me Now?
Dr. Forrester explains how sound behaves through different mediums.
Curated Video
Exploring the Benefits of Vibration Training: Rhythmic Neuromuscular Stimulation in Fitness
This video explores the concept of vibration training using machines that transfer vibrations to muscles, known as rhythmic neuromuscular stimulation (RNS). Dating back to the 1960s, this method claims to improve body tone and athletic...
Science Buddies
How to Use a Vibration Motor with Arduino (Lesson #25)
Learn to use a vibration motor with an Arduino in this tutorial.
Curated Video
Exploring Vibrations and Waves
This video breaks down the complex mechanics of sound and how sound travels. Students learn about vibration and sound waves, and even get to test their own instruments!
Curated Video
Catching a Sound Wave
The video “Catching a Sound Wave'' gives a general overview of how sound waves travel, with a focus on the phenomenon of echoes and how they are used in nature and science.
Curated Video
Clock Spider: What Is The The Legend Surrounding This Giant Spider Species?
Huntsman spider also called clock spider belongs to the family of Sparassidae. The Sparassidae family of spiders have eight forward facing eyes giving them an enigmatic look. What makes huntsman spider different from ordinary spiders is...
Virtually Passed
2DOF Spring Mass System Proof
This is an alternate proof for finding the natural frequencies and natural modes for a 2 DOF system. This method can always be used, but it's easier to involve matrices for larger degrees of freedom. The equation of motion can be...
Virtually Passed
Mathematics of Vibration [Part 2: Harmonic Excitation]
Here I describe the main formulas used for harmonic excitation. #SoME1 ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ TIME STAMPS 0:00 - Introduction 0:27 - Experiment Results 0:51 - Forced Vibration SMD model 2:04 - Time domain plot 2:54 - Amplitude...
Virtually Passed
2 Degree of Freedom vibrating system Summary
Two blocks oscillating via springs is a 2 DOF system. The final solution will have the form of a a modal vector times cos(w1t - phi1) + another modal vector times cos(w2t -phi2). The system is hence said to be oscillating at two natural...
Virtually Passed
Force excitation equation of motion proof
Here I derive part of the equation of motion for a spring mass damper system experiencing a sinusoidaly varying force. This is only the particular solution - Ie, the steady state solution. The total solution is x(t) = x_p + x_h where x_h...
Virtually Passed
Vibrating String Summary
Many vibrating systems oscillate according to the wave equation. A string fixed at both ends is just one example. In general, a vibrating string will consist of an infinite number of natural frequencies and an infinite number of...