Lab #16- Sense Organs
Aim: To analyze the pitch and frequency of a vibrating ruler.
Apparatus & Material: Desk/table and ruler
Method:
Obtain a ruler and desk for the experiment.
Place the ruler 5cm over the edge of the desk.
Push downward on the end of the ruler at the edge of the desk then release it.
Repeat step 2 and 3 by placing the ruler 10cm, 15, cm and 20 cm over the edge of the desk.
Observe and record all observations.
Results:
TABLE SHOWING RESULTS OF THE SPEED AND INTENSITY OF SOUND FOR A VIBRATING RULER.
Distance (cm) | Speed of vibration (fast or slow) | Intensity of sound (loud or soft) |
5 | | |
10 | | |
15 | | |
20 | | |
Discussion:
(Use the questions provided below to assist you in writing your discussion in paragraph format. DONOT write the questions in your lab book.)
Define the terms sound, frequency and pitch.
How does the vibration of the ruler at different distances over the edge of the desk/table relate to the frequency?
How does the frequency of the ruler at different distances over the edge of the desk/table relate to the pitch?
What do you notice about the frequency and distance of the ruler form the edge of the desk?
How did the distance of the ruler from the edge of affect the sound that was produced?
Conclusion:
(State the outcome of the experiment based on the aim and give reason to support based on the results).
Prepared by: Mr. K. Waite
Komentarze