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The Nature of Sound: Basic physics concepts
Terms in this set (29)
Defined as a system of knowledge covering the operation of general laws obtained and tested through the scientific method.
Modernized international metric system
International System of Units, abbreviated SI
What two systems does the SI combine?
MKS (meters, kilograms, seconds) & CGS (centimeters, grams, seconds)
Fundamental property of an object that refers to the amount of matter in the object; what is it measured in?
mass; grams or kilograms
Defined as any influence that causes an object to undergo a change in speed, a change in direction, or a change in shape what is it measured in?
Force; newtons (MKS) or dynes (CGS)
The force of gravity on an object and is related to its mass; measured in?
Defined as the quantity of three-dimensional space occupied by a liquid, solid, or gas; measured in?
Mass of a substance, material, or an object per unit of volume, or mass divided by volume; measured in?
Density; grams per centimeters cubed.
Distance traveled by an object in a given unit of time; measured in?
Speed; meters per second
This is speed but also specifies the direction of the movement.
Refers to the mass times velocity of an object adoring motion, measured by kilograms time meters per second.
Occurs when velocity changes as a function of time
The acceleration of an object is ___________ proportional to the force applied, and _____________ proportional to the objects mass.
the resistance of any physical object to a change in its state of motion or rest.
The velocity of a body remains constant unless the body is acted on by an external force
Newton's First Law of Motion
Property of a material that returns it to its original shape after it has been deformed by an external force.
Refers to a change in the shape or size of an object due to an applied force
The relative amount of deformation undergone by the object is called the ______________.
Elasticity is measured in terms of
Occurs when a force is exerted over a distance an dis measured in newtons times distance in meters
measure of work in the MKS systems; in the CGS system
Defined as the ability to do work
energy in motion
refers to the rate of work done or energy used in a period of time ; measured in?
Refers to power per unit of area and is measured in watts per square meter in the MKS system or watts per square centimeter in CGS.
Defined as the force acting perpendicularly on a specific surface area; measured in?
Pressure; pascal (MKS) or dynes per square centimeter (CGS)
Dynes per square centimeter is also called a _________.
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