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en
CR
Air and Aerodynamics
16
mass: When a balloon is popped is has a less ______ than one that is blown up.
compressed: Blowing up a balloon is an example that air can be _____.
temperature: Air expands and contracts when there is a change in_____.
cyclist: This athlete wears tight clothing and a smooth, helmet to reduce drag.
drag: The force that holds an object back.
bernoullisprinciple: Fast moving air over a surface results in lift.
thrust: Forward motion.
air: Odourless, colorless substance.
pressure: Air exerts _____.
lift: In order for an object to fly it needs sufficient _____ to overcome gravity.
space: Air takes up ___________.
lowpressure: fast moving air = __________
gravity: A force that is equal on every object on Earth.
streamline: The creation of a smooth surface creates this.
airresistance: A large surface area has more________.
propeller: airplanes use this to gain thrust
Air and Aerodynamics
Across:5. | When a balloon is popped is has a less ______ than one that is blown up. | 7. | Air exerts _____. | 8. | In order for an object to fly it needs sufficient _____ to overcome gravity. | 10. | Air takes up ___________. |
| 12. | Forward motion. | 13. | Fast moving air over a surface results in lift. | 14. | fast moving air = __________ | 15. | Air expands and contracts when there is a change in_____. |
| | Down:1. | This athlete wears tight clothing and a smooth, helmet to reduce drag. | 2. | The creation of a smooth surface creates this. | 3. | airplanes use this to gain thrust | 4. | A force that is equal on every object on Earth. |
| 6. | A large surface area has more________. | 9. | The force that holds an object back. | 11. | Blowing up a balloon is an example that air can be _____. | 16. | Odourless, colorless substance. |
| |
© 2015
PuzzleFast.com, Noncommercial Use Only
Air and Aerodynamics
Across:5. | When a balloon is popped is has a less ______ than one that is blown up. | 7. | Air exerts _____. | 8. | In order for an object to fly it needs sufficient _____ to overcome gravity. | 10. | Air takes up ___________. |
| 12. | Forward motion. | 13. | Fast moving air over a surface results in lift. | 14. | fast moving air = __________ | 15. | Air expands and contracts when there is a change in_____. |
| | Down:1. | This athlete wears tight clothing and a smooth, helmet to reduce drag. | 2. | The creation of a smooth surface creates this. | 3. | airplanes use this to gain thrust | 4. | A force that is equal on every object on Earth. |
| 6. | A large surface area has more________. | 9. | The force that holds an object back. | 11. | Blowing up a balloon is an example that air can be _____. | 16. | Odourless, colorless substance. |
| |
© 2015
PuzzleFast.com, Noncommercial Use Only