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PROGRESSIVE ASSESSMENT UPDATED
ACTUAL EXAM WITH CORRECT SOLUTIONS.
Heat - correct answer- A form of energy transfer without macroscopic motion due to a difference in temperature.
Work - correct answer- energy used to impart motion, product of distance moved times the magnitude of force opposing the motion
- W = f*l
- dW = Fdl
- power = rate of work: W = Fv
- W>0 for work done on system
- W<0 for work done BY system
Kinetic energy - correct answer- Stored energy that takes the form of motion
- KE = 1/2*M*V^2
Potential Energy - correct answer- Stored energy associated with an object's position in a force field due to gravitational and/or electromagnetic forces 1 / 2
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- PE = Ugh
Internal Energy - correct answer- Energy stored within matter on a microscopic level (individual molecules).
- found by measuring energy added/removed for a particular
change in state relative to a reference state
Enthalpy - correct answer-
Entropy - correct answer- the degree of disorder or randomness in a system. a quantitative way of describing how energy disperses or spreads out in a system. The amount of energy unavailable to do work.
Availability - correct answer- maximum energy that is able to be converted into useful work obtainable as a system moves to equilibrium
Open System - correct answer- has both matter and energy entering and/or leaving the system
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