Sound of Energy
What is sound?
Vibrations that travel through materials from a source.
The study of motion is called the study of _________.
Mechanics
What is a force that resists movement between two objects?
Friction
What is energy?
The ability of someone or something to do work.
Define Timbre
A sound's quality
What phase of matter does sound generally travel through the best?
Solids
What is Newton's first law of motion?
Something at rest stays at rest unless something forces it to move, and something in motion stays in motion in a straight line unless something forces it to stop moving.
What is a lubricant?
A substance that reduces friction.
What is kinetic energy?
Energy in motion
Define echo
A sound bouncing back and returning to its source
What measurement do we use to measure loudness?
Decibels
What is a force?
A push or pull on an object
Name three lubricants
water, soap and oil
What is potential energy?
Stored energy
Define infrasound
A sound too low pitched for our ears to hear
What is frequency?
The pitch of a sound.
What is Newton's second law of motion?
Force is what causes an object to change speed or direction. The change is resisted by the mass of the object.
What is adhesion?
The sticking together of two different materials.
What is the law of conservation of energy?
Energy cannot be created or destroyed, only transformed.
Define sonar
A system that uses high-frequency ultrasonic waves
Name one way we use what we know about sound to help us.
sonar, ultrasound, bioacoustics
Who was Isaac Newton. I need more than "a scientist".
a great creationist physicist and mathmetician
discoverer of the spectrum of light and the laws of motion, gravity, and cooling
inventor of the reflecting telescope
coinventor of mathematical calculus
What is the law that tells us all objects are attracted to other objects according to their mass and distance?
The universal law of gravitation
Name a form of renewable energy AND the problems associated with each.
wind energy-can be harmful to some flying creatures
solar energy-can be very expensive to install
Define soundwave
A moving vibration that produces sound