Air
What property of air is demonstrated by turning a cup upside down in a bucket of water...
What is air takes up space?
When you blow air through a paper tent, the sides bend inward. This shows the effects of air movement and is part of this principle.
What is Bernoulli's Principle?
The pilot in the plane is like this in a bird.
What is a brain?
In order for a plane to take off, this part needs to be lifted.
What is the elevator?
Birds skeletons are often this, better allowing them to fly.
What is hollow?
When we pump air into a bicycle tire we see this property of air in action.
What is air can be compressed?
When you place a long strip of paper in the end of a textbook and blow across the top of the book, the paper will do this.
What is lift?
In order for a plane to fly, the air needs to be going either faster or slower over the wings
What is faster?
These are needed for take off, landings, and to make a smooth ride
What are flaps?
In order for a plane to turn left, the ailerons need to be in these positions.
What is the left aileron up and the right aileron down?
What is carbon dioxide (CO2) ?
Fast moving air creates an area of this type of pressure.
What is low?
In order for a plane to turn and maintain the same altitude, this part of the plane is used.
What is the rudder?
A hot air balloon has a hole in the top of the balloon. As the hole is open and hot air escapes, the balloon will do this.
What is descend?
This principle of air is used to allow hot air balloons to rise
What is air expands and contracts?
The four forces of flight are these.
What are thrust, lift, drag and gravity?
Hot air balloons lift because the air particles outside the balloon are this.
What is more dense than the air outside (air particles are hotter and further apart inside the balloon)?
The place where the pilot controls the plane is called this.
What is the cockpit?
The two forces that act on a parachute are these.
What is gravity and drag?
You see a chart that states: Cruise Flight with Floats = 110 km/hr Cruise Flight with Wheels = 130 km/hr You infer that floats increase this force of air.
What is drag?
Sometimes birds will hop a few times before flying. They do this to overcome this force of air.
What is gravity?
A pilot tells you that many features of an airplane have been adapted from the features of birds. Which one of these is not an example? a. Radar to help low visibility flights b. Strong, lightweight, flexible materials c. Extra-long wings on gliders d. Landing gear folds up
What is radar to help low visibility flights?
A plane is seen in the air and the pilot rolls the plane from side to side. In order to make the plane roll the pilot needed to move these up and down.
What are the ailerons?
Air balloons are most often flown in the morning because of these two conditions.
What is the air is colder and calmer?