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Key factor that enables airplane to lift
Variable: lftplane
Module:
Science Knowledge & Attitudes
Subject:
Knowledge
,
Science
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Survey Questions
Questions associated with this variable:

Which of the following is a key factor that enables an airplane to lift?

Year Availability
Available in 1 of 32 years total. Hover over a year to see ballot information.
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Summary by Year
Showing All Years
Code Label
1 Air pressure beneath the wing is greater than that above the wing
2 Pressure within the airplane is greater than that of the outside
3 Engine power is greater than that of friction
4 The plane's wing is lighter than air
8 Dont know
9 No answer
0 Not applicable
2008
799
90
345
40
211
20
518
Summary Statistics
Valid cases 1274
Missing cases 61192