Table of Contents
Why do planes fly so high?
The reason aeroplanes fly so high is due to improved fuel efficiency. A jet engine operates more efficiently at higher altitude where the air is much thinner, allowing an aircraft to travel faster whilst at the same time, burning less fuel.
What does an aircraft do?
An aircraft is a vehicle or machine that is able to fly by gaining support from the air. It counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engines.
How high can Flies fly?
Basically, flies can fly in 50 degrees Fahrenheit or higher, anything lower than that is too cold. On a 70 degree day, flies can reach about 3000 feet in altitude, going higher will cause death (from the cold). If it’s hotter, say, 90 degrees, a fly could potentially reach 5000 feet.
How do airplanes fly?
Airplanes fly because they are able to generate a force called Lift which normally moves the airplane upward. Lift is generated by the forward motion of the airplane through the air.
What keeps an airplane in the sky?
Four forces keep an airplane in the sky. They are lift, weight, thrust and drag. Lift pushes the airplane up. The way air moves around the wings gives the airplane lift. The shape of the wings helps with lift, too. Weight is the force that pulls the airplane toward Earth.
How does lift affect the speed of an airplane?
The faster an airplane moves, the more lift there is. When the force of lift is greater than the force of gravity, the airplane is able to fly, and because of thrust, the airplane is able to move forward in flight. According to Newton’s third law of motion, the action of the wings moving through the air creates lift.
What are the 4 forces that affect the shape of an airplane?
They are lift, weight, thrust and drag. Lift pushes the airplane up. The way air moves around the wings gives the airplane lift. The shape of the wings helps with lift, too. Weight is the force that pulls the airplane toward Earth. Airplanes are built so that their weight is spread from front to back. This keeps the airplane balanced.