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| Final Question | ||||
3 adapations on a bird
3 adapations on a bird
Tail used for steering, Hollow bones, powerful chestmucles
What does exerts mean?
What does exerts mean?
gives off
What are 5 other words for compressed?
What are 5 other words for compressed?
squished, contracted,squashed, Pressed,Squeezed
What are 3 properties of air
What are 3 properties of air
1 Air takes up space
2 Air exerts pressure
3 Air hcan be compressed
What are the 4 forces of flight?
What are the 4 forces of flight?
gravity thrust drag lift
What is Bernoulli's principle?
What is Bernoulli's principle?
fast moving air creates low air pressure
What happens if lift is greater than mass?
What happens if lift is greater than mass?
the plane ascends
What happens if thrust becomes greater than drag?
What happens if thrust becomes greater than drag?
the plane goes forward
What happens lift, thrust, drag and mass are equal?
What happens lift, thrust, drag and mass are equal?
the plane goes at a steady flight
What happens if thrust becomes less than drag?
What happens if thrust becomes less than drag?
the plane slows down
What happens if lift becomes less than mass?
What happens if lift becomes less than mass?
The plane descends
Describe how a bird gets thrust?
Describe how a bird gets thrust?
When a bird flaps it's wings it actually pushes the air backwards away from it's path
Describe the shape of a aircrafts wing
Describe the shape of a aircrafts wing
airfoil - curved on the top and flat on the bottom
Is there more or less air pressure under the aircraft's wing
Is there more or less air pressure under the aircraft's wing
more
What happens when air is heated?
What happens when air is heated?
It expands
What are 2 ways that aircraft propel themselves?
What are 2 ways that aircraft propel themselves?
bloopers
What are two processes that use up oxygen?
What are two processes that use up oxygen?
Rusting and Burning
Airplanes and sports cars are streamlined to reduce
Airplanes and sports cars are streamlined to reduce
Drag
What happens to wind as it passes in between large buildings and skyscrapers?
What happens to wind as it passes in between large buildings and skyscrapers?
It speeds up.
An ostrich can not fly because the force of ______ is greater than the force of ______ that can be generated by their _____.
An ostrich can not fly because the force of ______ is greater than the force of ______ that can be generated by their _____.
gravity / lift / wings
What gas makes up the largest component of air?
What gas makes up the largest component of air?
Nitrogen
What is created when air is removed?
What is created when air is removed?
googoooooooooooogleeooooooooooogleoooooogleooooogleoooogleooooogleooooogleooooogleooooogleooooogleoooogleoooogleooooogle
You and your friend are having a race to see who’s paper will fall to the ground the fastest. You crumple up your paper into a ball and your friend leaves their paper as is. Why does your balled up piece of paper reach the ground first?
You and your friend are having a race to see who’s paper will fall to the ground the fastest. You crumple up your paper into a ball and your friend leaves their paper as is. Why does your balled up piece of paper reach the ground first?
It has less drag.
As you drink from a juice box through a straw, the juice moves up the straw because the air pressure is
As you drink from a juice box through a straw, the juice moves up the straw because the air pressure is
lowered inside the straw
Place a piece of cardboard on top of a full glass of water. Holding the glass and the cardboard quickly flip the glass upside-down and slowly let go of the cardboard (none of the water escapes).
Which property of air does this experiment show?
Place a piece of cardboard on top of a full glass of water. Holding the glass and the cardboard quickly flip the glass upside-down and slowly let go of the cardboard (none of the water escapes).
Which property of air does this experiment show?
Air exerts pressure.
If you were to blow air through a straw between two cans, what would happen? Why?
If you were to blow air through a straw between two cans, what would happen? Why?
The can's would move together.
Bernoulli's Principle states that the fast air between the cans create low pressure. The higher pressure air around the cans pushes the cans together.
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