Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
45 Cards in this Set
- Front
- Back
|
Kinetic Energy Activity |
energy that a body possesses by virtue of being in motion. KE=(0.5)(m)(v) m=mass v=speed |
|
|
what is Energy? |
the ability to do work |
|
|
types of energy |
-kinetic -potential -mechanical -sound -chemical -radiant electric -thermal -nuclear |
|
|
Energy |
-Cannot create nor destroyed -can be transformed from one form to another |
|
|
potential energy |
-Energy that is stored in an object -can possess gravitational potential energy if an object is above zero height |
|
|
sound energy |
squeezing or releasing molecules in a solid or gas state |
|
|
mechanical energy |
related to the movement of objects |
|
|
nuclear energy |
Energy stored in bonds between particles in the nucleus |
|
|
chemical energy |
energy stored in bonds between a toms in a compound |
|
|
Radiant energy |
vibrations that produce electromagnetic waves that can travel through space |
|
|
thermal energy |
motion of atoms or molecules in a substance |
|
|
Renewable Energy |
energy from a source that is not depleted when used |
|
|
nonrenewable energy |
-things that can run out -cant used more than once -oil,coal,natural gas,nuclear remains of dead plants and animals |
|
|
Wave Resources |
capture the power of waves and tides and convert it into clean, pollution-free electricity |
|
|
Geothermal |
relating to or produced by the internal heat of the earth |
|
|
Hydroelectric |
relating to or denoting the generation of electricity using flowing water (typically from a reservoir held behind a dam or other barrier) to drive a turbine that powers a generator. |
|
|
Solar Energy |
radiant energy emitted by the sun |
|
|
Biogas |
gaseous fuel, especially methane, produced by the fermentation of organic matter |
|
|
Anatomy of a Wave |
The highest part of the wave is called the crest. The lowest part is called the trough. The wave height is the overall vertical change in height between the crest and the trough and distance between two successive crests (or troughs) is the length of the wave or wavelength |
|
|
Frequency |
the inverse of period.The number of crests or troughs that pass a point during a set time interval |
|
|
Troughs |
the lowest point in a wave |
|
|
Amplitude |
the amount of displacement from the equilibrium or rest position. Equal to one half the wave height |
|
|
Medium |
In the case of a water wave in the ocean, the mediumthrough which the wave travels is the ocean water. In the case of a sound wave moving from the church choir to the pews, the medium through which the sound wavetravels is the air in the room. |
|
|
Period |
the time it takes for successive crests or troughs to pass a specific point |
|
|
Transverse Wave |
the vibrations of the medium are perpendicular to the direction of motion |
|
|
Longitudinal Wave |
is a wave in which the particles of the medium are displaced in a direction parallel to the direction of energy transport |
|
|
Electromagnetic |
waves that are propagated by simultaneous periodic variations of electric and magnetic field intensity and that include radio waves, infrared, visible light, ultraviolet, X-rays, and gamma rays |
|
|
Mechanical Wave |
is a wave that is an oscillation of matter, and therefore transfers energy through a medium. While waves can move over long distances, the movement of the medium of transmission—the material—is limited |
|
|
Surface Wave |
is a wave that is an oscillation of matter, and therefore transfers energy through a medium. While waves can move over long distances, the movement of the medium of transmission—the material—is limited |
|
|
Crests |
the highest point in a wave |
|
|
Absorption |
is a wave that is an oscillation of matter, and therefore transfers energy through a medium. While waves can move over long distances, the movement of the medium of transmission—the material—is limited |
|
|
Transmission |
If the object is transparent, then the vibrations of the electrons are passed on to neighboring atoms through the bulk of the material and reemitted on the opposite side of the object.Waves (Light) that pass through a substance Transparent or Translucent |
|
|
Tide |
the alternate rising and falling of the sea, usually twice in each lunar day at a particular place, due to the attraction of the moon and sun. |
|
|
Reflection |
If the object is opaque, then the vibrations of the electrons are not passed from atom to atom through the bulk of the material. The electrons of atoms on the material's surface vibrate for short periods of time and then reemit the energy as a reflected light wave. |
|
|
Wavelength |
the horizontal distance between successive crests, troughs or other parts of a wave. |
|
|
Wave Height |
the vertical distance between the crest of a wave and its neighboring trough. This term is commonly used when describing water waves where the undisturbed surface is not easily determined |
|
|
Undisturbed Surface |
a resting state or equilibrium position of medium in the absence of a wave. |
|
|
Rarefaction |
is a point on a medium through which a longitudinal wave is traveling that has the minimum density |
|
|
Compression |
is a point on a medium through which a longitudinal wave is traveling that has the maximum density |
|
|
Electromagnetic Spectrum |
describes the range of energies associated with different forms of electromagnetic radiation |
|
|
Sound Waves |
a wave of compression and rarefaction, by which sound is propagated in an elastic medium such as air. |
|
|
Water Waves |
a gravity wave on water |
|
|
Transparent |
allowing light to pass through so that objects behind can be distinctly seen |
|
|
Translucent |
allowing light, but not detailed images, to pass through; semitransparent. |
|
|
What is a wave? |
waves transfer energy - a disturbance that travels through a medium from one location to another -transport energy, not matter |
