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UNSW : UNSW Atmosphere Study Guide
Atmosphere Study Guide 41 6. Blow down between the pieces of paper with the same strength you did when the paper was 3 cm apart. 7. Note whether the paper still came together. 8. Design a results table in your work book to record the distance that the strips of paper are apart and whether or not they still come together. You may need to leave the data table open as you are not yet sure what the final distance will be. 9. Continue moving the paper strips away from each other 1 cm at a time until the strips of paper no longer come together when you blow between them. Try to resist the tendency to blow harder the further the strips of paper are moved apart. 10. Record the distances and behaviour of the strips of paper in the results table below. RESULTS Record your results in the table in your work book. DISCUSSION Answer the following questions in your work book. 1. At what distance(s) did you find Bernoulli’s Principle had the greatest effect on the pieces of paper? 2. At what distance did you find that the paper no longer came together? 3. What causes the two pieces of paper to come together when you blow between them? In your work book, draw a diagram to show how the particles in the air might be arranged in the fast moving air (blown air) and the stationary air. 4. Did you have any difficulties when conducting this experiment? 5. How did you overcome these difficulties? 6. How might Bernoulli’s Principle affect planes flying at higher altitudes where the air is less dense? CONCLUSION In your work book, write a conclusion that responds to your aim and summarises your results. iSTOCKPHOTO Elaborate