Electricity

1. Which of the following is the best example of an electrical insulator?

• Metal

• Plastic

• Copper

• Aluminum Foil

2. Which best describe the law of electric charges?

• Charges that are opposite in nature repel; charges that are the same in nature attracts.

• Charges always push away each other.

• Charges that are opposite in nature always pulls towards each other; charges that are the same in nature always push away each other.

• Charges always pulls towards each other.

3. What is the main difference between open and closed circuits?

• Open circuits makes electric current flow; Closed circuits doesn’t allow electric current to flow.

• Closed circuit is when the switch is on; Open circuit is when the switch is off.

• Open circuit; bulb lights. Closed circuit; the bulb does not light.

• None of the above.

4. Which practice is correct when using electricity?

• Turn on lights with wet hands.

• Turn off lights with wet hands.

• Do not touch or use electric appliances and gadgets with wet hands.

• Never ask your parents for help.

5. When electricity gathers in one place and does not move it is known as ________.

• Electric Current

• Static Electricity

• Circuit

• Switch

6. Electricity that moves from one place to another is called __________.

• Static electricity

• Electric charge

• Current Electricity

• Circuit

Draw a diagram of an open and closed circuits using the symbols provided below.

Note: You can first copy the symbols on a piece of paper and draw your diagram on the next slide. Click SUBMIT if you are done copying the symbol.

7-8. Draw an Open Circuit.

9-10. Draw a Closed Circuit