Energy - ORELA Middle Grades General Science 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. Which of the following examples describes a system in thermal equilibrium?

Question 2 2. Which of the following is the best definition of entropy?

Question 3 3. Which of the following is the best definition for energy?

Question 4 4. In physics, what is energy?

Question 5 5. Why is it possible to reach your hand into the oven without injury, but harmful to touch the pan inside it?

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Question 6 6. Which of the following is the best definition of renewable energy?

Question 7 7. Which of the following does NOT apply to the First Law of Thermodynamics?

Question 8 8. What is heat?

Question 9 9. Energy can best be defined as:

Question 10 10. Which of the following is the best definition of energy?

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Question 11 11. Which of the following is the best definition of thermal expansion?

Question 12 12. Which of the following is not true concerning the Big Bang Theory?

Question 13 13. Which of the following is a property of energy?

Question 14 14. Which of the following statements is NOT true concerning electromagnetic (EM) radiation?

Question 15 15. Why does running a jar under hot water make it easier to open?

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Question 16 16. Most of the Earth's geothermal energy is contained within:

Question 17 17. Which statement is NOT true about insulation?

Question 18 18. What kind of energy are you using when you connect something to a wall power outlet?

Question 19 19. What does the linear coefficient of thermal expansion refer to?

Question 20 20. Which of the following types of energy does the sun use to heat up our atmosphere?

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Question 21 21. A metal bar has an original length of 2 meters and an expansion coefficient of 0.01. If you heat it up from 27 degrees Celcius to 37 degrees Celcius, by how much will the length change?

Question 22 22. A commercial, man-made system is using a channel at a wavelength of 2.92 m. What is the most likely application being used?

Question 23 23. Based on the Law of Energy Conservation, which of the following would best maintain a machine's ability to do work without input of additional energy?

Question 24 24. Why do bridges need expansion joints?

Question 25 25. What is happening when you stand to the side of a campfire and get warmer in terms of energy?

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Question 26 26. By what mechanism do two objects of different temperatures teach thermal equilibrium?

Question 27 27. Which of the following types of energy is stored in a battery?

Question 28 28. The oven in your house uses convection to heat food. This means that _____.

Question 29 29. A particular commercial satellite radio station operates on 2335 MHz. What is the approximate wavelength of this signal?

Question 30 30. Consider a wood burning fireplace as a system in which the wood is completely burned into ash and soot. The mass of the wood before burning would be equal to which of the following?

Energy - ORELA Middle Grades General Science 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!

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