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wh 6thgrade science
flying etc.
| Question | Answer |
|---|---|
| wat was Wilbur and Orville Wright's goal? | to fly a plane heavier than air |
| WHERE did they test their odd vehichle? | Kitty Hawk, NC |
| Wat did they study to f their idea? | they studied the flight of birds |
| how long did their 1st flight last? | 12 seconds |
| wat year did the bros. fly? | 1903 |
| wat was the name of their 1st plane? | the Flyer 1 |
| ____________ was a swiss scientist | Bernoulli |
| State Bernoulli's principle: | "the pressure exerted by a moving stream of fluid is less than the pressure of the surrounding fluid |
| bernoulli found out that the faster a fluid moves the _______________ the fluid exerts | less pressure |
| Moving water exerts ______________ than still air | less pressure |
| Why does a shower curtain move inward while water is on? | because the stream of moving water inside the curtain drags air with it |
| a _________ keeps a racecar on the ground | spoiler |
| What r u doin' when u squeeze the bulb of an atomizer? | you r causing the air to move quickly past the top of the tube |
| ________= an upward force | lift |
| True or False: A bird's wing is shaped like a plane's wing? | TRUE |
| the upward force caused by the pressure on the top side of the wing being lower than the pressure on the bottom side of the wingis called ___________? | lift |
| the air friction on the wing as it moves through the air? | drag |
| A/an ___________ is a shaped surface designed to provide lift? | airfoil |
| True or False: An airfoil with a more sharply curved upper surface creates less lift? | FALSE: it creates more lift! |
| True or False: the more curve the more lift? | True |
| ________________ states that the pressure exerted by a moving stream of fluid is less than the pressure of the surrounding fluid? | Bernoulli's principle |