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HUMANKIND VS
NATURE
Flight
There are 2 types of flight
Humankind Nature
Powered Flight
Non-Powered Flight
Humankind
POWERED FLIGHT
• Helicopters• Aeroplanes – different types
• Rockets• Satellites• Dirt bikes• Blimp
BlimpWhat makes a
blimp fly?
• Mixture of helium and air is used to help the ship float.
• Wings and propellers keep the blimp moving in the right direction.
Dirt bikes
Helicopter
Aeroplane
Rocket
SatellitesWhat keeps them
in orbit?
• Air Resistance• No atmosphere• Weight • Speed
NON-POWERED FLIGHT• Hang Gliders
• Kites• Parachutes• Sport
• Skateboards• Projectiles – darts
• People• Hot air balloon
Hot Air Balloon
• Hot air filled in the balloon makes it go up.
• Releasing the hot air out the valve makes it go down.
People• Pilots
• Acrobats
• Astronauts
Projectiles
Skateboards
Sport• High jump• Long jump• Triple jump• Gymnastics• Trampolining
Parachutes
Kites
HANG GLIDING• Pilot must run down the slope• Wind generates lift• Gravity keeps it in the air
• Birds• Plants• Animals• Insects
• Shooting Star
NATURE
Birds
How does a bird fly through the air?
When a bird flaps its wings, air is pushed downward. This produces an opposite force that “lifts” the bird into the air. Since a bird’s wing is in the shape of an airfoil, it produces some lift even when the bird is just gliding.
Shooting Stars
Gravity! "Shooting stars" are space rocks falling to Earth. They glow because of the extreme heat generated by their passage through the atmosphere.
Insects
Animals
Plants