Welcome to... A Game of X’s and O’s

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1 You and a friend have different ideas about the best way to stick balloons on the wall. You think rubbing the balloons on your head is the best way; however, your friend thinks using a piece of fleece is better. What is the BEST solution to resolve this difference of opinion? A. Try out both ideas and compare the results B. Hang the balloons with string from the ceiling C. Both agree to use paper streamers instead of balloons D. Flip a coin to see who gets to stick the balloons on the wall

1 A. Try out both ideas and compare the results Home

2 Which of the following questions could be answered by reading more about static electricity? A. Why does a wire get hot when you use it to connect one side of the battery to the other? B. Why do clothes taken from a dryer stick together more in the winter than in the summer? C. Why does a fuse short out sometimes when too many things are plugged into one outlet? D. Why do electric companies use alternating currents for sending electrical energy over long distances?

2 B. Why do clothes taken from a dryer stick together more in the winter than in the summer?

3 Which statement explains why rubbing a balloon over your hair several times will make the balloon stick better to a wall than rubbing it over a wooden table? A. There is more static electricity generated between the balloon and the hair B. The friction between the balloon and hair create a temporary magnet C. The balloon will always pop when rubbed over a wooden table D. Current electricity is made between the balloon and the wooden table

3 A. There is more static electricity generated between the balloon and the hair

4 Which example best shows how static electricity can be used? A. A student rubbing socks on the carpet to turn on the lights. B. A student rubbing a balloon on her hair to “stick” balloons to the wall. C. A parent plugging in a toaster to make toast for breakfast. D. A scientist turning on a microscope to look at water samples.

4 B. A student rubbing a balloon on her hair to “stick” balloons to the wall.

5 Why does static electricity move from you to a metal object after you have walked over new carpet? A. It is attracted to the metal. B. It is attracted to you. C. It is attracted to the carpet. D. It is made in your shoes.

5 A. It is attracted to the metal.

6 What makes a rubbed balloon seem to “stick” to a wall? A. Rubbing a balloon charges the balloon, and this charge is attracted to the wall. B. Rubbing a balloon charges the balloon, and this charge is repelled by the opposite walls. C. Rubbing the balloon makes it magnetic and this makes it stick to the wall. D. Rubbing the balloon makes it a battery, and this makes it attracted to the wall.

6 A. Rubbing a balloon charges the balloon, and this charge is attracted to the wall.

7 Use this diagram of a homemade electroscope to answer the question. The circles are cheerios that will take a static charge. Why would a comb that had been run through hair touch one cheerio and cause the two cheerios to come together? The comb had A. the same charge as the cheerios already had B. a positive charge C. a negative charge D. a different charge than the cheerios already had

7 D. a different charge than the cheerios already had

8 A student experimented with different items to see which would be attracted to a static charge. Which material would best complete the data table? A. pieces of tissue paper B. wooden toothpicks C. rubber bands D. copper pennies

8 A. pieces of tissue paper

9 Benjamin Franklin invented a lightning rod to protect homes from lightning. Why are lightning rods helpful? A. Lightning is electricity and can damage a house. B. Lightning cannot produce enough power to damage a house but is a nuisance. C. Lightning rods are used as decoration and provide perches for birds. D. Lightning rods help support a roof to prevent leaking.

9 A. Lightning is electricity and can damage a house.