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Flashcards in air and aerodynamics Deck (12)
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1

what is propulsion

the action of driving or pushing forward

2

why does a balloon exert pressure

because the are pressure inside of the balloon is the same as the air pressure outside of the balloon

3

what would happen if the air pressure on the inside of the balloon was greater then the air pressure on the outside of the balloon

the balloon would burst

4

what would happen if the air pressure on the outside of the balloon was greater then the air pressure inside of the balloon

the balloon would collapse

5

air also has...and...

mass
density

6

what is mass

mass is amount of of matter in an object

7

what is density

how tightly or how loosely packed the molecules inside a object is

8

when you are under water is there more air pressure or low air pressure

more air pressure

9

when you are on top of a mountain is there high or low air pressure

low air pressure

10

what is the meaning of compressed

means squeezed together

11

what is Bernoulli's principle

states that as speed of a moving fluid increases, the pressure within the fluid decreases

12

what are the four forces of flight

lift, drag, thrust, gravity