Conceptual Physics Chapter 8 Test Study Guide

Conceptual Physics ? Chapter 8 Test Study Guide

Know all the terms and definitions on page 210. You'll see these in matching, multiple choice, true/false, and fill-in-the-blank questions.

? Be able to give a proper definition of each term ? Be able to recognize each term from its definition ? Know how to identify and correct an incorrect definition

Know and understand the following concepts and models. You'll see these in multiple choice, true/false, fill-in-the-blank, and essay (computational) questions.

? Analogy or metaphor between energy and money (p 194) ? Different forms of energy and how to recognize and/or describe them (p 195) ? Determining if an experimental outcome is possible from its inputs (p 196) ? Energy flow and loss due to heat and friction (p 197) ? but not energy flow diagrams ? Power as rate of work (revisited), energy flow, and energy conversion (pp 198-199) ? Efficiency of work (revisited), energy, and power (p 200) ? Thermodynamics ? first and second laws, efficiency of heat engines, and entropy (p 201) ? Efficiency of living things and the "food" Calorie (p 202) ? Computing efficiency at different stages of energy conversion and flow (p 203) ? Estimating power needed by machines to do specific work (p 204) ? Power usage in natural systems such as the earth-sun system and water cycle (pp 205-206) ? Energy flow in living systems (p 207) ? Ways to get energy from ocean tides (pp 208-209)

Know when and how to apply each of the following equations. You'll see these in multiple choice and essay (computational) questions.

? Power for energy ? Efficiency of work ? Efficiency of work ? Efficiency of work ? Efficiency of a heat engine ? Horsepower ? Food Calorie

=

=

=

=

= 1 -

1 = 746

1 = 4,187

REMEMBER: When you're answering a computational essay question: (1) write your answer using proper units, and (2) provide a concise explanation of your work. Plug the numbers into the equation so that I can see if you earn full or partial credit.

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