Student Edu Exploring Careers and Employment (PLTW) Semester 2

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© 2011 Project Lead The Way, Inc. PLTW Gateway – Magic of Electrons Activity 1.7 Electricity: The Invisible River of Energy – Page 1 Activity 1.7 Electricity: The Invisible River of Energy https://edpuzzle. com/media/6073bd6b3c074641835044f8 Procedure Before watching the DVD, read the questions below so that you know what to listen for as you watch the movie. Answer the following questions while viewing the DVD Electricity: The Invisible River of Energy. 1. Electricity is formed by the movement of . 2. What are the three major particles of an atom?3. What type of charge does a proton have? What type of charge does an electron have? 4. A positively or negatively charged atom is called an . 5. Atoms and particles with a like charge each other, while atoms with opposite charges . 6. Electricity is divided into two categories, and . 7. electricity refers to the electrical charge an object develops as a result of having an unequal number of protons and electrons. 8. electricity is made up of moving electrons or ions. 9. The amount of electrical charge an object has is measured in . 10. A is a material that allows electrons to flow easily through it.
electrons
protons, neutrons and electrons
positive
negative
postive ION or negtive ION
Static Electricity
Current Electricity
static
current
coulomb
conductors
© 2011 Project Lead The Way, Inc. PLTW Gateway – Magic of Electrons Activity 1.7 Electricity: The Invisible River of Energy – Page 2 11. Water is a good conductor of electricity – True or False? (Circle one) 12. such as glass and rubber do not allow electrons to flow freely. 13. The difference in potential energy between an electron at the negative terminal and one at the positive terminal is called the . 14. This difference between terminals is measured in . 15. currents always flow in one direction, while currents reverse directions in cycles. 16. What are the two basic types of circuits? . 17. In a circuit, current that passes through an electrical device does not pass through any other devices. 18. In a circuit, current must pass through all of the devices plugged into the circuit. 19. opposes the flow of electricity and consumes power in the circuits by converting electrical energy into heat. 20. This opposition is measured in . 21. The flow of electricity is measured in units called . 22. A is the simplest means of controlling the flow of current through a circuit. 23. One way a circuit can be overloaded is with a . 24. Another way a circuit can be overloaded is when .
fiberglass
potential difference
volts
© 2011 Project Lead The Way, Inc. PLTW Gateway – Magic of Electrons Activity 1.7 Electricity: The Invisible River of Energy – Page 3