In Depth

What I Need  Form the room like a college classroom.  Have all eyes and ears focused on my two cheerleaders.  Each team of cheerleaders will get five minutes to explain why the airplane or balloon is the best.  Then each team of cheerleaders gets three minutes for a counter argument  The audience decides who wins

Team Airplane

Team Balloon

Counter Argument time!!!!

The Winner Is…

A brief history on the Hot Air Balloon And Now…

The first hot air balloon ride occurred in France during the late 18 th century. On November 21, a 25 minute flight was made over Paris by Pilatre d’Rozier and Francois d’Arlandes. However, these men did not invent the balloon. “Historians agree, however, that the first true powered flight with humans on board was in a hot air balloon” –AE Module 1

Montgolfier Brothers….  Once upon a time, two well-educated men were reading about properties of air. They get the idea that “Hey! We should play with fire!” They took a bag of silk, lit a fire underneath the bag, and slowly watched it rise because of the buoyancy. Why did the bag rise?

HEAT RISES!!!!! (no way)

What is Buoyancy?

Buoyancy  The Hot air balloon is buoyant because it is filled with hot air. Since heat rises, the balloon is able to float. But how does it generate hot air?

Example Time!!!!!!!!!!!!

Brief History on the Airplane

Deadalus and Icarus  Once upon a time, two prisoners, a father and son, named Icarus and Deadalus. Both men were prisoners on an island. They eventually grew tired of being imprisoned, and planned an escape. They covered their arms with wax and feathers, and soon flew off into the unknown. However, Icarus’ father told him not to fly too close to the sun, because the wax would melt, but like every teen, he did not listen to his parent. Soon he flew too close, the wax melted, and he died.

Happy History Time.  Objectives: Who was Daniel Bernoulli and Sir Isaac Newton?  Can anyone tell me?

Daniel Bernoulli  Discovered the relationship between pressure and fluids in motion. It became the cornerstone of the Airfoil Lift Theory.

Airfoil Lift Theory  Daniel found that like air in motion, fluid had a constant pressure. When fluid is accelerated, pressure drops. Thus, wings in an airplane are designed to make air flow go faster over the top of the wing.  As velocity increases, pressure decreases.  Can you provide examples?

Sir Isaac Newton  In my last class, I briefly went over the Three Laws of Motion.  Can you recall any of them?

Three Laws of motion in Depth

An object at rest will remain at rest unless acted upon by an outside force.  Or an object will go about it’s merry way unless acted upon by an outside force.  In my last example, I had Morikawa hold my rocket in motion, my hand was the outside force that stopped it from going it’s merry way.  Another example: if an F-22 is flying towards a target, shoots at the target in motion, and the target goes flying downwards, the F-22 ammo is the outside force to that target.

F=M*A  The net force of an object is equal to the rate of change  where F is the net force applied, m is the mass of the body, and a is the body's acceleration. Thus, the net force applied to a body produces a proportional acceleration. In other words, if a body is accelerating, then there is a force on it.

For every action, there is an equal and opposite reaction  In every interaction, there is a pair of forces acting on the two interacting objects. The size of the forces on the first object equals the size of the force on the second object. The direction of the force on the first object is opposite to the direction of the force on the second object. Forces always come in pairs - equal and opposite action-reaction force pairs.

ADVENTURE TIME!!

Objectives  Put the chairs on the SIDE of the room.  Prepare for your minds to be blown