Student name: ______________________ Class/Hour: __________ SySTEM Alert! Quiz (Volume 3, Number 4) This quiz covers the information in SySTEM Alert! volume 3, number 4. Circle the letter of the correct answer or write the letter by the question number. 1. A new smart bandage being developed could protect a wound by _______. A. releasing antibiotic particles to kill bacteria B. sensing when a wound needs air C. alerting the person when the bandage needs to be changed D. releasing chemicals that stop bleeding 2. After researchers gave their computer data from 600 basketball games, what could the computer do? A. make decisions about which player should be drafted onto a team B. tell how good individual players would be at other sports C. make good guesses about the actions of the players D. play basketball 3. In headphones, what pulls the cone toward the magnet? A. pressure waves B. Tiny movements in the headphone wearer’s head jostle the cone toward the magnet. C. It goes the other way around. The magnet actually moves toward the cone. D. the coil 4. What planet has seen temperatures hotter than the Sun’s center? A. Mercury B. Earth C. Mars D. Neptune 5. How do sounds travel through the air? A. The molecules in the air vibrate against one another. B. Tiny electrical pulses travel outward from the source of the sound. C. Sound particles, called phonons, carry them. D. Scientists don’t know how sound travels through the air. 1 6. Why do squirrels sometimes pretend to hide nuts? A. to mislead other animals that are spying on them to get their stash of nuts B. to demonstrate to their young how it is done C. to get practice for when they must really hide them for survival D. for fun 7. According to a new study, what do zebrafish and the prices on the stock market have in common? A. They both grow very quickly. B. They both travel in schools. C. They both change directions rapidly. D. They both can be purchased for less than a dollar. 8. What is the name for headphones that make sound waves with opposite shapes from the other sound waves around them? A. wave-producing headphones B. supra-aural headphones C. circumaural headphones D. noise-canceling headphones 9. After rodents, what is the most common lab animal? A. fruit fly B. ape C. rabbit D. zebrafish 10. An electrified wire can create a/an _______ field. A. impulse B. electromagnetic C. wave D. career Bonus question: Computers can be programmed to make predictions based on the patterns it sees. What would you like a computer to be able to predict? What kinds of data or information would the computer need to know to make its predictions? 2