Fundamental Physical Constants
Coefficients of Friction
Indices Of Refraction
Nuclear & Particle Data
Special Math Constants
Calculators & Apps
Periodic Table of Elements
Time Reference & Exact Time
Humidex & Windchill Calculator
Decimal Multiples & Prefixes
Materials Safety Info
Nobel Prize & Bruce Medal Info
Electricity & Magnetism
Waves in Matter, Sound
Light, Optics and Photonics
Atomic & Nuclear
Special & General Relativity
Astronomy & Astrophysics
Definitions & Reference
All Answers, all categories
University and College Departments
Institutes and National Labs
History of Physics
Reference for Educators
Cartoons by Rick London
Cartoons by Mark Parisi
Cartoons by John McPherson
Cartoons by Jerry Van Amerongen
Solvay ala PhysLink.com
Jokes, jokes and more jokes
Chemist's equiVALENT Party
Is there Santa?
'Twas The Night Before Christmas, NASA-style
The Fate of the Universe
The Ten Commandments for Amateur Astronomers
Ask the Experts - Sound
Could you please explain the general theory behind the sound that is produced when water falls on a hot surface?
How do you find an objects resonant frequency?
Shortening a guitar string to one-third its initial length will change its natural frequency by what factor?
I was told that lower frequency sound waves (like from a bass guitar) travel lower to the ground that higher frequencies. Is this true?
Is it true that a duck's quack doesn't echo? If so, why?
What is the physics involved with breaking glass with your voice?
What is Huygen's Principle?
There are two persons in a plane which is traveling at a speed greater than the speed of sound. If one of them talks, will the other hear it?
When you rub your finger along the rim of a glass, it resonates, why is this? Also, why does the pitch of this sound get lower when you add water to the glass?
Why do Foghorns always have very low pitches? Do they have high or low amplitude?
Can sounds actually break glass? If so, is there a special frequency or decibel level needed?
What are the frequencies of musical notes like G and G(cardinal) in k-hertz?
Suppose 2 sinusoidal waves undergo totally destructive interference. This results in wave with zero amplitude (and hence zero intensity). What happens to the energy associated with wave (1) and wave (2)?
Why do you hear a glugging sound when you pour a liquid out of a bottle by holding it upside down?
Why does a piece of chalk produce a squeal if you hold it incorrectly. Wwhat determines the pitch you hear?
If you have a very long and rigid pole and have an observer on each end, if one of them pushes the pole how soon will the other one feel it?
Why X-rays and Gamma-rays are different in nature, though both are of eletromagnetic origin?
What is a sonic boom and how is it produced?
What is the physics behind the voice change which occurs when one inhales Helium?
How do you determine the distance of lightening from where you are standing using the sight of lightening and the sound of the thunder?
Is it true that radio waves travel faster than X-rays?
Why does a Fire truck siren change pitch when it passes us?
Why does sound travel faster in solids than in liquids, and faster in liquids than in gases (air)?
'Our job in physics is to see things simply, to understand a great many complicated phenomena, in terms of a few simple principles.'
Our Online Science Store
CHEM C2000 Chemistry SuperKit v2.0
Electric Plane Launcher 4M Kit
The Original Hoberman Sphere
Magnetic Gyro-Fly Wheel
Elements of Science Kit
Sun Art Paper - 8 x 10
Super Science Magnet Kit
My First Lab Duo Microscope
© Copyright 1995-2018 PhysLink.com