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Bernoulli's Principle Investigation #3 Student Response Sheet |
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What Happens to the Ping Pong Balls?� Why? |
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| Key Science Topic |
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| Ensure that each member of the group is able to define pressure, knows what direction air flows in relation to pressure and can explain Bernoulli's Principle. |
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| Problem |
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| Investigate how air moving between two suspended ping pong balls affects the ball movement and supports Bernoulli's Principle. |
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| Materials Needed (per student or per group) |
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| 2 Ping-Pong balls |
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| Scissors |
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| 2 Lengths of fishing line (24?) |
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| Masking tape |
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| Stand |
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Investigation |
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| Tape two equal length pieces of fishing line to two ping-pong balls. |
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| Hang the two ping-pong balls about 5 cm apart from a horizontal support. |
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| Discuss and write a group response to the first two bullets under Results/Responses. |
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| Blow air directly at one of the ping-pong balls. Observe what happens to the ping pong balls. |
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| Blow air between the ping-pong balls in a quick blast.� Observe what happens to the ping pong balls. |
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| Results/Responses |
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| Predict what you think will happen when air is blown directly at one of the ping pong balls. |
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_______________________________________________________________
_______________________________________________________________ |
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Predict what will happen when air is blown between the two ping pong balls. _______________________________________________________________
_______________________________________________________________ |
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Was the first prediction made by your group accurate?� If not, explain what did happen when the air was blown directly at the ball. _______________________________________________________________
_______________________________________________________________ |
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Was the second prediction made by your group accurate?� If not, explain what happened when the air was blown between the two ping pong balls. _______________________________________________________________
_______________________________________________________________ |
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| Reflections/Applications |
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| Why did the ping pong balls move apart when air was blown between them? Be sure to include information about pressure, flowing air movement and Bernoulli's Principle in your group answer.� Ensure that all members of the group understand the group answer. |
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_______________________________________________________________
______________________________________________________________________________________________________________________________
_______________________________________________________________ |
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| Summarize what you know about the air flow between high and low pressure areas. |
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_______________________________________________________________
_______________________________________________________________ |
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_______________________________________________________________
_______________________________________________________________ |
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| Discuss and summarize how the group thinks this investigation might relate to weather reports and the high and low pressure area systems that affect our weather. |
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_______________________________________________________________
______________________________________________________________________________________________________________________________
______________________________________________________________________________________________________________________________
_______________________________________________________________ |
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| Draw a weather map (local or national or international) in the space below and prepare and present a weather report to the class. |
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| Created by:� Anita Hollis/Catherine Hunt |
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