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