6. Place the following words in the correct spaces on the diagram:

Aluminum Carbon (pencil lead) Copper(penny) Iron (paper clip) Paper Plastic Rubber (eraser) Steel (pin) Cotton

5. Fill in the blanks with appropriate word or phrases from the box.

Conservation of charge static electricity conduction induction static discharge electroscope friction Volts p.d. volt push parallel potential voltmeter

1. The buildup of charges on an object is called ______________.

2. The law of ______________ states that charges are not created or destroyed. They are transferred.

3. The transfer of charge from one object to another by rubbing is called ______________.

4. A (n) ______________ is an instrument that can detect an electric charge.

5. The loss of static electricity as electric charges move off an object is called ______________.

6. The movement of electrons from one part of an object to another part, caused by the electric field of another object, without the two objects touching is called ______________.

7. The transfer of charge when electrons move from a charged object to another object by direct contact is called ______________.

5. Voltage is like a “____” from a battery that makes a current flow.

6. It’s also called “_____________ difference” or “_._.” for short.

7. We measure voltage with a _____meter, and the units are called “________”.

8. We put our ____________ in _______ with the thing we’re measuring.

6. Choose the best word from each pair in bold.

1. Watts describe/show the rate at which electricity is being used at a specific moment.

2. Watt-hours measure the total amount/number of electricity used over time.

3. Kilowatts and kilowatt-hours are useful/necessary for measuring amounts of electricity used by large/huge appliances, such as refrigerators, and by households.

4. Kilowatt-hours are what show up on your electricity bill/check.

5. Megawatts are used to measure/count the output of a power plant or the amount of electricity required by an entire/whole city.

6. Gigawatts measure the capacity of large power/energy plants or of many plants.

7. Voltage is the difference in electric/electrical potential between two points - or the difference in electric potential energy/power per unit charge between two points

8. The higher/bigger the voltage of the electricity, the faster/sooner it will flow from a source of electricity to an end use.

9. A volt, or the unit/part of voltage, is a common/general electrical measurement.

10. An ohm is a unit of electrical resistance/power. It refers to whether a substance is a good conductor/insulator of electrical power or an insulator/conductor that restricts electric flow.

11. Ampere is a term/definition for how a lot electric current/charge flows through a circuit.