Education.com
Try
Brainzy
Try
Plus

Can You Hear Me Now? (page 2)

based on 218 ratings
Author: Andrew S.

Terms and Concepts for Background Research

Sound waves were researched to see if pressure affects the frequency of sound. Barometric pressure was researched in partner with sound waves. Sound was also a big topic and was researched to see how it behaved in different temperatures. Finally, we researched about parabolic sound collecting dishes and how they worked.

Research Questions

  • Does heat affect the frequency of sound?
  • Does atmospheric pressure affect the frequency of sound?
  • Does distance affect how sound is collected?
  • How does the frequency of sound behave in different weather conditions?
  • How does a parabolic dish work?
Experimental Procedure
  1. Assemble the parabolic sound collecting dish (see appendix a).
  2. Set the oven to 0oF with room temperature at 70°F.
  3. Place the parabolic sound collecting dish 197 cm away from the oven.
  4. Surround all sides of the dish except for the side facing the oven with poster boards so the unwanted sound is kept out.
  5. Pl ay one long single “middle C” tone at 440 Hz on the tuner metronome for 15 seconds facing the oven and record the measurement on the IPod on the other side of the poster board.
  6. Record the sound in hertz.
  7. Repeat this 5 times, label each trial 1, 2, 3, 4, and 5.
  8. Repeat steps 2-7 four more times at 225, 325, 425, and 450°F.
  9. Repeat steps 2-8, except at 394 cm.

Results

room

temperature 70°F

Temperature of Oven at 0°F    

(Group #1)

Sound waves in

Hertz(Hz) at 197 cm

Sound waves in

Hertz(Hz) at 394 cm

Trial 1

2448
1464

Trial 2

1880
1666

Trial 3

1350
1495

Trial 4

1998
1498

Trial 5

1455
1529
Average
1826.2
1530.4
 

room

temperature 70°F

Temperature of Oven at 225°F    

(Group #2)

Sound waves in

Hertz(Hz) at 197 cm

Sound waves in

Hertz(Hz) at 394 Cm

Trial 1

4479
1995

Trial 2

2373
1899

Trial 3

3292
1579

Trial 4

3598
1772

Trial 5

2119
1660
Average
3172.2
1781
room
temperature 70°F
Temperature of Oven at 325°F   
(Group #3)
Sound waves in
Hertz(Hz) at 197 cm
Sound waves in
Hertz(Hz) at 394 Cm
Trial 1
3467
1961
Trial 2
3862
2367
Trial 3
4911
2498
Trial 4
3174
2893
Trial 5
3627
2311
Average
3808.2
2406
 
 
 
 
 
 
 
 
 
 
 
 

room

temperature 70°F

Temperature of Oven at 425°F   

(Group #4)

Sound waves in

Hertz(Hz) at 197 cm

Sound waves in

Hertz(Hz) at 394 Cm

Trial 1

4144
2505

Trial 2

5719
2806

Trial 3

4603
2712

Trial 4

5097
2538

Trial 5

4465
2612
Average
4805.6
2634.6
room
temperature 70°F
Temperature of Oven at 450°F     (Group #5)
Sound waves in Hertz(Hz) at 197 cm
Sound waves in Hertz(Hz) at 394 Cm
Trial 1
4466
2917
Trial 2
4510
3243
Trial 3
4591
2887
Trial 4
4874
2779
Trial 5
4774
2612
Average
4643
2887.6
 
 
 
 
 
 
 
 
 
 
 
 
 
 

The average is 1826.2 Hz. The outlier is trial one because it is 621.8 Hz higher than the average. There is no trend. The range of the data is 1098 Hz.

The average is 3172.2 Hz. The outlier is trial one because it is 1306.8 Hz above the average. There is no trend. The range of the data is 2360 Hz.

The average is 3808.2 Hz. The outlier is trial three; it was 1102.8 Hz higher than the average. There is no trend. The range of the data is 1737 Hz.

The average for the data is 4805.6 Hz. There was no outlier; they are all close to the average. There is no trend. The range of the data is 1575 Hz.

The average of the data is 4643.0 Hz. There was no outlier; they were all close to the average. There is an upward trend and at trial 5 the trend starts to drop. The range of the data is 4808 Hz.

The average of all the trials is 3651 Hz. The outlier was trial one because it is 1824.8 Hz lower than the average. There is an upward trend that slopes down at 450°F. The range of the averages is 2979.4 Hz.

 
The average is 1530.4 Hz. There was no outlier; they were all very close together. There is no trend, and the range is 202 Hz.
 
 

The average is 1781 Hz. There is no outlier, they all were very close to eachother.There was no trend, and the range was 416 Hz.

 

The average is 2406 Hz. The outlier was trial four, it is 487 Hz below the average, and there is no trend. The range is 932 Hz.

 

The average is 2634.6 Hz. The outlier is trial 2, because it is the farthest from the average. It is 171.4 Hz above the average. There seems to be no trend, The range is 301 Hz.

The average is 2887.6 Hz. The outlier is trial 2 because it is 355.4 Hz above the average. There is no trend, and the range of the data is 631 Hz.

 

 The average of the averages is 2247.92 Hz. The outlier is trial one, because it is 717.52 Hz.There is an upward trend going from 0°F to 450°F. the range of the averages is 1357.2 Hz.

Add your own comment
DIY Worksheets
Make puzzles and printables that are educational, personal, and fun!
Matching Lists
Quickly create fun match-up worksheets using your own words.
Word Searches
Use your own word lists to create and print custom word searches.
Crossword Puzzles
Make custom crossword puzzles using your own words and clues.
See all Worksheet Generators