History of Flight

How does a hot air balloon work?

• Heating the air inside the balloon makes the air inside the balloon lighter than the cooler air on the outside. This causes the balloon to float upwards.

• The rotor blades act like wings and create lift.

• The propellers spin and cause it to hover.

• The helium causes the balloon to be lighter than the air so the hot air balloon floats. 

• The shape of the balloon causes lower air pressure above the balloon.  Since the air around the balloon has higher pressure than above the balloon, the basket lifts.

Tags

NGSS.MS-PS1-4

How does a blimp work?

• Heating the air inside the blimp makes the air inside the blimp lighter than the cooler air on the outside. This causes the blimp to float upwards.

• The rotor blades act like wings and create lift.

• The propellers spin and cause it to hover.

• The helium causes the blimp to be lighter than the air so the blimp floats. 

• The shape of the blimp causes lower air pressure above the blimp.  Since the air around the blimp has higher pressure than above the blimp, the blimp lifts.

How does a drone work?

• Heating the air inside the drone makes the air inside the drone lighter than the cooler air on the outside. This causes the drone to float upwards.

• The rotor blades act like wings and create lift.

• The propellers spin and cause it to hover.

• The helium causes the drone to be lighter than the air so the drone floats. 

• The shape of the drone causes lower air pressure above the drone.  Since the air around the drone has higher pressure than above the drone, the drone lifts.

How does an airplane work?

• Heating the air inside the plane makes the air inside the plane lighter than the cooler air on the outside. This causes the plane to float upwards.

• The rotor blades act like wings and create lift.

• The propellers spin and cause it to hover.

• The helium causes the plane the air so the plane floats. 

• The shape of the plane causes lower air pressure above the plane.  Since the air around the wings has higher pressure than above the wings, the plane lifts.

What is the main use of the hot air balloon?

• leisure/fun

• transportation of goods & people

• time efficient way to transport people

• military

• advertisement

What is one use of a drone?

• leisure/fun

• transportation of goods & people

• time efficient way to transport people

• military

• advertisement

What is one use of a helicopter?

• leisure/fun

• transportation of goods & people

• time efficient way to transport people

• military

• advertisement

What is one use of an airplane?

• leisure/fun

• transportation of goods & people

• time efficient way to transport people

• military

• advertisement

What is one use of a blimp?

• leisure/fun

• transportation of goods & people

• time efficient way to transport people

• military

• advertisement

Who invented the hot air balloon?

• Joseph and Etienne Montgolfier

• Henri Giffard

• Abraham Karem

• Igor Sikorsky or Paul Cornu

• Orville and Wilbur Wright