1. Sound JEOPARDY Sound Energy 100 200 300 400 500 Too Much Noise! 100 200 300 400 500 Play It Again 100 200 300 400 500 I Can’t Hear You 100 200 300 400 500 Can We Talk? 100 200 300 400 500

2. Can We Talk? 100 The use of echoes to help animals find their way and food is called…. Echolocation Return to board

3. Can We Talk? 200 Any sounds that are too high for humans to hear are called… (hint: machines can send out these high frequency waves and then make a picture of the echoes) Ultrasound Return to board

4. Can We Talk? 300 Sounds below the human hearing range are called….. (hint: elephants make sounds this low) Infrasound Return to board

5. Can We Talk? 400 This common household machine turns sound energy into electrical energy and then back to sound again. Telephone Return to board

6. Can We Talk? 500 This device measures how long it takes for an echo to return. It is generally used by submarines and fishing boats to determine the object’s distance. Sonar Return to board

7. I Can’t Hear You 100 This part of the outer ear contains ear wax…. Ear Canal Return to board

8. I Can’t Hear You 200 Name the 3 small bones of the middle ear…. Hammer, Anvil, Stirrup Return to board

9. I Can’t Hear You 300 A thin, tight membrane that vibrates…….. Ear Drum Return to board

10. I Can’t Hear You 400 This inner ear structure contain fluid which vibrates tiny hair cells…. Cochlea Return to board

11. I Can’t Hear You 500 Which nerve carries electrical signals to the brain? Auditory Nerve Return to board

12. Play It Again 100 A measurement of how high and squeaky or low and deep a sound is…. pitch Return to board

13. Play It Again 200 A measure of how many compressions pass a certain point every second. Frequency Return to board

14. Play It Again 300 Frequency is measured in a unit called…. Hertz (Hz) Return to board

15. Play It Again 400 The distance from the top, or crest, of one wave to the next is called…. Wavelength Return to board

16. Play It Again 500 As an object making a sound moves, the pitch changes (think of a motorcycle coming toward you, then passing you). This is called… Doppler effect Return to board

17. Too Much Noise! 100 What well-known kids toy is often used to show how a sound wave moves? Slinky Return to board

18. Too Much Noise! 200 A measure of how loud or soft a sound is. Loud sounds have a lot of energy or ….. Volume Return to board

19. Too Much Noise! 300 The height of a sound wave is its …. Amplitude Return to board

20. Too Much Noise! 400 Volume is measured in ….. Decibels (dB) Return to board

21. Too Much Noise! 500 A machine that turns sound waves into pictures. oscilloscope Return to board

22. Sound Energy 300 Name the 3 substances or mediums that sound can move through… Solid, Liquid or Gas Return to board

23. Sound Energy 400 The pushed-together part of a wave is called a …. Compression Return to board

24. Sound Energy 500 Most wave energy travels in up- and-down waves, not like sound waves. These waves like radio, TV, microwaves, and UV waves are called…. Transverse waves Return to board

25. Sound Energy 100 Sound energy is caused by back-and-forth shaking movements called…. Vibrations Return to board

26. Sound Energy 200 Space with nothing in it is known as …… (hint: sound cannot travel through this) Vacuum Return to board