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TExES Physical Science 6-12: Energy Transformations Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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Question 1 1. If you heat up an object that contains holes and crevices, what happens to those holes?

Question 2 2. What does it mean when the enthalpy change for a reaction is negative?

Question 3 3. An endothermic reaction is:

Question 4 4. Table salt dissolves spontaneously in water because the change in Gibbs free energy is ______.

Question 5 5. Which of the following statements about Gibbs free energy is false?

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Question 6 6. The Gibbs free energy is ______.

Question 7 7. Why does running a jar under hot water make it easier to open?

Question 8 8. When a bond forms, energy is given off to the surroundings. This is an example of

Question 9 9. Why do bridges have expansion joints built into them?

Question 10 10. Chemicals tend to always _______.

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Question 11 11. An example of an exothermic reaction is:

Question 12 12. The change of Gibbs free energy predicts ______.

Question 13 13. Which of the following is the best definition of thermal expansion?

Question 14 14. Enthalpy change is

Question 15 15. A strip of concrete has an original length of 4 meters, and an expansion coefficient of 0.003. If you heat it up from 14 degrees Celsius to 34 degrees Celsius, by how much will the length change?

TExES Physical Science 6-12: Energy Transformations Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

TExES Physical Science 6-12 (237): Practice & Study Guide  /  Science Courses
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