GEAS Terms and Definitions Part 12

1.     “In a confined gas, if the absolute temperature is held constant, the volume is inversely proportional to the absolute pressure.” This is also known as
ANSWER: Boyle’s Law

2.     “At constant pressure, the volume of a sample of gas is directly proportional to the absolute temperature.” This is known as
ANSWER: Charles’ Law

3.     The first law of thermodynamics is also known as
ANSWER: Law of Conservation of Energy

4.     Refers to series discrete electromagnetic wavelengths emitted by the atoms of a low pressure gas that is subjected to a sufficiently high potential difference.
ANSWER: Line Spectrum

5.     The average kinetic energy of gas molecule is proportional to the ___________ of the gas
ANSWER: Absolute temperature

6.     The ___________ of a volume of air is the ratio between the amount of water vapor it contains and the amount that would be present at saturation.
ANSWER: Relative Humidity

7.     ___________ a gas consists of a great, many, tiny individual molecules that do not interact with on another except when collision occurs.
ANSWER: Kinetic Theory of gases

8.     What physical property of a material refers to the amount of weight gain % experienced in a polymer after immersion in water for a specified length of time under a controlled environment?
ANSWER: Water absorption

9.     The phenomenon whereby wavelength photon hitting an atom on the surface of a substance causes an electron to be ejected
ANSWER: Photoelectric effect

10.   What radiation produces electrons with the highest energy?
ANSWER: Gamma Rays

11.   Elastic modulus that exists in liquids
ANSWER: Bulk modulus

12.   “Every body perseveres in its state of being at rest or of moving uniformly straight forward, except insofar as it is compelled to change its state by force impressed.” This is also known as
ANSWER: First Law of Motion
Note: First Law of motion is also called the Law of Inertia. This is often paraphrased as "zero net force implies zero acceleration", but this is an over-simplification.

13.   “The rate of change of momentum of a body is proportional to the resultant force acting on the body and is in the same direction.” This is also known as
ANSWER: Second Law of Motion
Note: Second Law of motion is also called  the Law of Inertia

14.   “All forces occur in pairs, and these two forces are equal in magnitude and opposite in direction.” This is also known as
ANSWER: Third Law of Motion
Note: This law of motion is commonly paraphrased as: "To every action force there is an equal, but opposite, reaction force".

15.   What physical property of a material that refers to the temperature at which a material liquefies on heating or solidifies on cooling?
ANSWER:  Melting point

16.   The period of the pendulum depends on which of the following?
ANSWER: Length

17.   Is a device used to increase the pressure by slowing down the liquid?
ANSWER: Diffuser

18.   The SI unit of Impulse is
ANSWER:  N-s

19.   What substance that has a melting point of 280 C and is liquid at warm temperatures?
ANSWER: Cesium

20.   A common alloy is 80% nickel and 20% chromium, It has high electrical resistance.
ANSWER:  Nichrome

21.   copper-nickel alloy usually consisting of 60% Copper and 40% Nickel. Commonly used as thermocouple.
ANSWER: Constantan

22.   Used as thermostat. It has low or zero temperature coefficients. 
ANSWER: Invar

23.   The definite discrete amount of energy required to move an electron from a lower shell to a higher shell. 
ANSWER:  Quanta

24.   Other name for retentivity
ANSWER: Remanence

25.   What is the minimum carrier power of the standard AM broadcast where effective and direct supervision of an Electronics Engineer is required?
ANSWER: 1KW

   26.   … of the atom.
ANSWER: electrons do not have a localized orbit, but are spatially like cloud

27.   Broken down … simpler substance?
ANSWER: Element

28.   … of top management?
ANSWER: External environment

29.   What refers to the process of determining the contributions that subunits con make with allocated resources?
ANSWER: Immediate planning? Or Intermediate Planning?

30.   …. ratio of stress to ____________ for materials operation in the nonlinear region in the stress-strain diagram?
ANSWER: Secant Modulus

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