Sunday, January 23, 2011


                                         Science wave lab
Problem: What floating object can move the fastest on a low frequency or on a high frequency?
Materials:
·       Water
·       Ping pong ball
·       Cork
·       Small Styrofoam ball
·       Ruler
·       Small see through aquarium
·       Clay 



PROCEDURE
1. 1.   Fill the aquarium with water 1.5 inches.
2. 2.   Tape a ruler in the front
3. 3.  Get the materials
4. 3.   Have a stop whatch to see how long it takes the material to move 10 cm.
5. 4.   Write down your data 
6. 5.   Use the clay to make a disturbance/waves for the object to move.
7. 6.   Check with the stopwathch how long it takes for the object to move 10 cm

Data
Cork-   Low frequency: 49.6 sec
             High frequency: 11.5 sec
Ping pong ball- Low frequency: 19.2 sec
                            High frequency: 3.4 sec
Small Styrofoam- Low frequency: 31.9 sec
                         High frequency: 2.0 sec

Cork
Ping Pong Ball
Small Styrofoam Ball
low frequency
49.6
19.2
31.9
High frequency
11.5
3.4
2



Data Analysis:  The cork was the heaviest of all, so it moved the slowest, the ping pong ball was almost the same as the small Styrofoam ball.


Conclusion: I kind of knew that the small Styrofoam ball would have moved the fastest on high frequency, but I didn’t expect the ping pong ball to move the fastest in low frequency. The Styrofoam ball is the lightest of all three objects the second lightest was the ping pong ball, and the cork was the heaviest of all. 

1 comment:

  1. So, what can you conclude regarding your guiding question? Was your hypothesis correct? Your data was good. The procedure was straight forward and easy to follow. I would have liked to see more of your analysis though. The further inquiry is missing which is where you discuss error, improvements, and further questions you have. Please revise your lab post. Overall, good job!

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