What are the forces that affect flight?
Name the 4 forces that affect flight.
Drag, Weight, Thrust and Lift
_____________ is a force that produces thrust by pushing an object forwards or pulling it through the air.
propulsion
Which forces counteract each other?
Lift counteracts weight. Thrust counteracts drag.
Name three animals that have adaptations that enable them to fly.
Birds, bats, and insects.
Who was the first woman to fly solo across the North Atlantic in 1932 from Harbour Grace, NL?
Amelia Earhart
____________is the force that pushes or pulls an object forwards
Thrust
A structure or surface, such as a curved wing, that interacts with the surrounding air to produce a desired motion, such as lift.
Airfoil
What are two forces found in flight that are absent in space?
The two forces that are absent in space are lift and drag.
True or False. Birds have hollow bones with thin crosshairs that enable them to fly.
True
Who designed the first powered, heavier-than-air machine to fly in Canada, the Silver Dart?
Alexander Graham Bell
The ____________of an object is caused by the force of gravity acting on it.
Weight
__________________applies when higher and lower pressure areas are created as air flows over a curved surface. It explains the air pressure changes that cause the object to lift.
Bernoulli’s Principle
What are the two types of propulsion?
1) One pushes an object forwards (ex. rocket)
2) The other type pulls an object through the air (ex. propeller).
True or False. Birds have heavier jaws and teeth which enable them to fly.
False. Birds have beaks instead of heavier jaws and teeth.
What are four factors that are considered when designing new aircrafts?
Aircrafts are being designed to be more lightweight, aerodynamic, cheaper, and energy efficient.
_______________is the force that achieves flight. It occurs at a right angle to the airflow. Airflow around a wing creates lift.
Lift
___________________ is the ability to move easily through the air.
aerodynamic
What counteracts weight?
Lift
True or False. Adaptations help to reduce the load that has to be lifted in flight.
True
What is aerodynamic?
Aerodynamic is the ability to move easily through the air.
____________ and ______________ cause drag.
______________pulls an object downward toward the centre of Earth.
gravity
What counteracts thrust?
drag
A birds body shape helps reduce ___________.
drag
Who made the first powered, controlled, and sustained flight in an airplane?
The Wright Brothers