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50 Cards in this Set
- Front
- Back
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Waves |
a wave of compression and rarefaction by which sound is propagated in an elastic medium such as air water or any other liquid or solid matter. |
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Mechanical Waves |
are waves which propagate through a medium solid, liquid, or gas. |
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Electromagnetic Waves |
are waves that can travel through the vacuum of outer spcae |
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Transverse Waves |
is a moving wave that consist oscillations occurring perpendicular |
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Compressional Waves |
the compressional wave is also known as the mechanical longitude wave, because they produce compression and rarefaction when traveling through a medium. |
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Amplitude |
is the distance from the rest position to the crest position which is half the vertical distance from the trough to the crest; Formula= A=d/f D is the distance traveled by wave and F is the frequency of the wave |
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Period |
amount of the time it takes one wave length to pass a point the frequency of a wave increases the period decreases it's like a cycle. |
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Frequency |
a wave is the number of wavelengths that pass a fixed point each sound |
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Reflection |
sound waves off an object of surfaces also affected by the shape of the surface also the reflection is also the change in direction of a wave front at interface between two different media so that the wave front returns into medium. |
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Diffraction |
various phenomena which occur when a wave encounters an obstacle or a slit also involves a change in direction of waves as they pass through an opening or around a barrier in their path. |
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Nuclear Energy |
the energy released during nuclear fusion or fission especially when used. |
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Nuclear Fusion |
a nuclear reaction where two nuclei combine to form a heavier nuclei. |
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Nuclear Fission |
the main process generating nuclear energy it's either a nuclear reaction or radioactive decay which splits the nucleus into smaller parts. |
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Nuclear Energy Equation |
E=mc2 where m is the small amount of mass and c is the speed of light |
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Entropy |
a measure of the amount of energy which is unavailable to do work. |
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The Anatomy Of An Atom |
atom is made up of 3 parts in the center of an atom is the nucleus. |
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Elastic Energy |
energy stored in elastic material due to stretching and compressing. |
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Equation Of Elastic Energy |
F=k. the x = stretch or compression K= spring constant. |
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Chemical Energy |
stored in the bonds of chemical compounds (atoms and molecules). |
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Fossil Fuels |
a source of non-renewable a natural fuel such as coal or gas formed in the geological past remains of living organisms. |
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Physical Change |
something that can go back to what it used to be |
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Electromagnetic Waves |
are waves that can travel through the vacuum of outer space. |
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Thermal Energy |
part of the total energy of an object, related to the temperature the object. |
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Thermal Energy Equation |
Q=m.c.t |
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Themodynamics 1st |
Energy cannot be created or destroyed |
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Themodynamics 2nd |
entropy of any isolated system not in thermal equilibrium |
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Wavelength |
the distance between one point on a wave and the nearest point just like it |
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Wave Speed |
a wave speed is the distance traveled by a given interval of time |
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Refraction |
is most evident in situations in which the sound the waves passes through a medium with gradually varying properties |
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Interference |
when two sound waves occur when at the same time and are in the same phase |
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Droppler Effect |
a increase or decrease in the frequency of sound, light, or other waves as the origin and observer more toward or away from themselves. |
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Echolocation |
it is the location of objects by reflected sounds in specific that's used by animals such as dolphins and bats. |
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Sonar |
a system for the detection of objects under water and for measuring the waters distance downward by entering sound pulses and discover or measure their return after being reflected. |
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How does electromagnetic warm your skin |
the electromagnetic waves from the sun cause electrons in your your skin vibrate and gain energy the heat that we feel from the sunlight a fire a radiator or a warm sidewalk is infrared the higher the frequency of light the higher its energy is . |
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The differs in electromagnetic energy |
energy type of electromagnetic energy has a different properties |
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The theory of electromagnetism |
interaction between electricity and magnestism |
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Examples of chemical energy |
batteries, biomass, natural gas , coal, and petroreum |
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what are the changes in the physical change |
shape or state as liquid spherical to cubical or thick and thin |
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The importance of elastic energy? |
elastic energy calculates the energy in the elastic energy. |
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What sounds is associated with? |
sound energy is a type of energy that is associated with vibrations of matter. |
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What is the measurement of the sound energy related to? |
It's pressure and it's intensity. |
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Where is chemical energy found? |
inn the chemical bonds (atoms and molecules) |
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What are the two types of chemical changes? |
chemical and physical |
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Type of energy found in stars? |
nuclear fusion |
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Two main types of waves |
transverse and longitudial |
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What type of energy is found between the bonds of atoms |
chemical energy |
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Three ways heat can be transferred? |
conduction, convection,radiation |
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What makes electromagnetic waves different |
the frequency of the wave |
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What form of heat transfer moves through liquids and gases |
potential energy |
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Form of energy you see in a CD |
electromagnetic waves |
