Science (1st exam)
the quantity of work done per unit of time
Power
the ability or capacity to do work
Energy
the energy related with the position and the motion of an object
Mechanical energy
Stored energy that can perform work when time requires
Potential Energy
energy due to object's Position relative to a certain height
Gravitational Potential energy
just like in the case of a compressed spring or stretched rubber
Elastic potential energy
inherent in all substances
Chemical potential energy
a wave that is Created by Vibrating objects
Sound
a series of interconnected and interacting Particles that transmit vibrations from one location to another
Medium
a wave that transmits energy through a medium
Mechanical wave
a Wave in which Particles of the medium move in a direction parallel to the direction of the movement of the wave
Longitudinal wave
Occurs when molecules are forced or pressed together
Compression
Occurs when molecules have more space and are allowed to expand
Rarefaction
the length between two compressions or two rarefactions
Wavelength
the energy of a moving object or the energy Of motion, from the Greek word kinetikos which means moving
Kinetic energy
energy cannot be created nor destroyed
Law Of conservation Of energy
work is equal to the change in kinetic energy
Work-energy theorem
how fast the vibrations pass from one particle to another, equal to the distance that the vibration travels per unit of time
Speed of a sound wave
the ability of a material to return to its original shape after removing the force applied on it
Elasticity
the amount of material (mass) in a particular amount of space (volume)
Density
the degree of hotness or coldness of the medium
Temperature
turning back of a wave as it hits a barrier
Reflection
multiple reflections or echoes in a certain place
Reverberation
the change in speed of sound when it encounters a medium of different density, bending of sound waves
Refraction
a method of locating underwater objects by emitting sound waves that are reflected by the Objects, sound navigation ranging
Sonar
the process of locating distant objects by emitting sound and receiving the echo objects have reflected
Echolocation