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Beginner's Guide to Rockets

Boyle's Law - Worksheet
1. Which variable is plotted on the graph's vertical axis? _____________________

2. Which variable is plotted on the graph's horizontal axis? _______________________

3. Locate the temperature gauge. What is the Kelvin temperature? _____________________

4. Which of the following conditions is that temperature closer to? room temperature? human body temperature? freezer temperature? _______________________________

5. The red plunger is used to exert pressure on the gas molecules in which colored area? _______________________

6. Complete the table below as you watch the animated gas lab.
 PRESSURE VOLUME 1.00 1.33 2.00

7. What do you predict the volume will be when the pressure changes to 4.00? _______________________

8. Sketch the completed pressure-volume graph.

9. Click on "Effect of changing pressure on volume." Describe what is added to the piston to increase the pressure.
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10. Sketch the completed volume-pressure graph.

11. Write the formula equation for Boyle's Law. ______________________________________________________

12. Write the equation for Boyle's Law in words. ______________________________________________________
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13. In the Animated Gas Lab, what are the units of pressure? ______________________

14. What are the units of volume used in this lab? _________________________

15. Predict what the volume in this lab would be if the pressure were 8.00. ___________________________

16. Predict what the volume in this lab would be if the pressure were 0.500. ___________________________

17. State Boyle's law in your own words. ___________________________________________________________
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18. Zip a sandwich bag nearly closed. Insert a straw into the opening and blow through the straw to inflate the bag so that it is a little over half full of air. Completely seal the bag. Now slowly roll the zipper part of the bag toward the bottom of the bag, decreasing the volume of the bag. Describe what happens to the pressure of the air in the bag as you decrease its volume. __________________________________________________________________________________
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19. How does your experience with the plastic bag compare to the animated gas lab? ___________________________
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20. If, in either situation, instead of having a closed container you had a small opening in the bottom of it, what would eventually happen to the gas? __________________________________________________________________
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21. Referring to the previous question, what would happen to the volume of the gas in the container? _______________
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22. Referring to the previous question, what would happen to the pressure of the gas? __________________________
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23. Based on the questions above, hypothesize why a rocket nozzle must constantly have gas flowing through it in order to maintain pressure. _________________________________________________________________________________
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