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HEAT, WORK AND ENERGY QUIZ

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HEAT, WORK AND ENERGY QUIZ FOR STUDENTS

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Wenefredo Pazo

Filipinas

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HEAT, WORK AND ENERGY QUIZ


Froggy Jumps HEAT, WORK AND ENERGY QUIZVersión en línea HEAT, WORK AND ENERGY QUIZ FOR STUDENTS por Wenefredo Pazo 1 1. What term describes the total energy stored inside the tiny particles of an object? a Heat b Internal Energy c Temperature 2 2. Which statement best explains how heat is converted into work in an engine? a Gas particles disappear. b Gas particles slow down. c Heated gas particles push against a container. 3 3. A system has 100 J of heat added to it, and the system does 40 J of work. What is the change in internal energy? a 40J b 60J c 100J 4 4. How does rubbing your hands together demonstrate the relationship between work and heat? a It destroys energy. b Mechanical work is converted into heat. c Internal energy is removed from the hands. 5 An engineer wants to make a car engine more environmentally friendly by reducing waste energy. Which of the following design changes would best achieve this goal based on the thermal efficiency formula? a Use a smaller fuel tank. b Paint the engine a darker color. c Decrease the amount of heat lost to the cold sink.