Name:_____________________________________________________________ Period:____________

Sound Lesson Review Worksheet Pitch and Frequency 1.

An object that is vibrating fast has a high frequency and will make a __________________ pitched sound. An object that is vibrating slowly has a __________________ frequency and will make a ________________________ pitched sound. (LT8)

2.

Wave A has a frequency of 40 Hz. Wave B has a frequency of 80 Hz. Which wave produces the higher pitched sound? Explain your answer. (LT8) _________________________________________________________________________________________________________ _________________________________________________________________________________________________________

3.

(LT8)

4.

How are frequency, wavelength, and pitch related? (LT8) _____________________________________________________________________ _____________________________________________________________________

5.

How does amplitude determine loudness? (LT9) _____________________________________________________________________ _____________________________________________________________________

(LT8) 6.

7.

Interpret Data: Use the data table below to answer questions 8 -9. (LT4)

Material Cold Air Warm Air Water Brain Blood

Speed of Sound (m/s) 331 366 1,480 1,540 1,570

8. Ultrasound uses high-frequency sound waves to get images of the insides of our bodies. Sound waves would travel the fastest through which of the materials listed in the chart?

9. Would sound travel fastest through warm air or cold air? Explain why.

How Sound and Matter Interact (LT 10) 10. Would you be most likely to hear an echo in a room that is a. empty b. filled with drapes, curtains, carpet and furniture c. contains one couch d. none of these options 11. What object would absorb or reduce the most sound? a. wood b. cement c. pillow d. none of these options 12. What object would reflect or bounce back the most sound? a. glass b. blanket c. air d. none of these options