Forces of Flight

1. Forces of Flight Sectional Review

2. 4 Forces of flight Lift Drag Thrust Weight (Gravity x Mass)

3. 4 Forces of flight Lift Drag Thrust Weight (Gravity x Mass)

4. What’s are Forces? • Gravity • Weight • Drag • Lift • Thrust • Buoyancy

5. Mass and Weight • Mass • The amount of Matter in a substance • Plain English – How much stuff is inside something • Measured – kg or g (pounds for old fogies) • Formula – Get on a Scale • Weight • The Gravitational Pull on an Object • Plain English – How much does Gravity pull you on the ground • Measured – N (Newtons) • Formula – Mass x Gravity

6. Density • Associated with Mass • Mass – How much stuff is in something • Density is one step beyond – it want to know how big that something is. • Density – How much stuff is inside of a given size object • Measured – g/cm3 or kg/m3 • Formula – mass x volume

7. Density • Density – Mass x Volume • Mass – Measure on a Scale – g or kg • Volume – The 3D size of an object • Area – 2D size of an object – so it is just adding one more side to the object • Length x Width = Area • Length x Width x Height = Volume

8. Density of Air • The Hot Air inside the balloon makes the air particles spread apart from each other • Since the particles are over a bigger volume it is less dense. • Less Dense Air Rises up

9. Density Of AirParticles

10. Density of Air • Less Dense Air Rises up Gravity Buoyancy

11. Bernoulli’s Principle

12. Bernoulli’s Principle Air Pressure Travels from High to Low As Air speeds up it loses pressure

13. Bernoulli’s Principle