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NMTA Middle Grades General Science (204): Practice & Study Guide  /  Science Courses

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Electricity, Potential & Capacitance in Physics 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!

Page 1

Question 1 1. One watt is equal to:

Question 2 2. The two types of current are:

Question 3 3. In Coulomb's Law, increasing the distance between particles by a factor of 2 while leaving all other factors the same will:

Question 4 4. A capacitor with a capacitance of 5 Farads is connected to a 10 Volt battery. How much charge will be stored on each of its conducting plates?

Question 5 5. Which type of human cell behaves like a capacitor?

Page 2

Question 6 6. Voltage is analogous to _____.

Question 7 7. Voltage is equal to:

Question 8 8. What is electric potential?

Question 9 9. The voltage across each light bulb in a parallel circuit:

Question 10 10. Fill in the blanks: Electric field lines point _____ positive charges, and _____ negative charges.

Page 3

Question 11 11. Electrical resistance:

Question 12 12. What is an electric field?

Question 13 13.

With electric field lines, how are stronger electric fields are represented?

I. By electric field lines that are close together

II. By electric field lines that are far apart

III. By using long vector arrows

IV. By using short vector arrows

Question 14 14. Generators are used to generate voltage in what type of power plant?

Question 15 15. Particle A and B each have a charge of 5 x 10^-19 coulombs. If the two particles are 4 x 10^-6 meters apart, how much electric potential energy do they have relative to each other?

Page 4

Question 16 16. Resistivity is:

Question 17 17. An object becomes electrically charged when:

Question 18 18. Resistance is equal to:

Question 19 19. What does Gauss' Law allow you to do?

Question 20 20. An electric force field:

Page 5

Question 21 21. Fill in the blank: As you follow an electric field line, the electric potential _____.

Question 22 22. A long, conductive cylinder has a charge of 0.2 coulombs per meter, and a radius of 0.04 meters. What is the electric potential at a radius of 0.1 meters away from the center of the cylinder?

Question 23 23. Power is a measure of how much:

Question 24 24. Adding a light bulb to a parallel circuit will:

Question 25 25. A conducting sphere has a total charge of 2 coulombs. What is the electric potential at a distance of 3 meters from the sphere, assuming that this is greater than the sphere's radius?

Page 6

Question 26 26. Materials that make good electrical conductors contain atoms with:

Question 27 27. A 5 coulomb charge has 5,000 joules of electric potential energy due to its position in an electric field. What is the electric potential at that point in the field?

Question 28 28. The strength of the force between charged particles is dependent on:

Question 29 29. Do electric field lines show you the direction a positive charge will move? Why or why not?

Question 30 30. How do we know objects have electric potential energy?

Electricity, Potential & Capacitance in Physics 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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