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# Flight-Science

### Flight unit test

What is the Bernoulli's Principle? As the speed of a moving fluid increases its pressure decreases.
What are the forces? Gravity(pulling down), Drag(dragging), Thrust(moving forward), Lift(lifting)
Which one has more pressure? Faster or Slower? Faster air has less pressure, slower air has more pressure.
What creates thrust? Rocket, jets, and propellers.
What is the first Newtons Law? 1, Things want to keep on doing what they are doing.
What is the second Newtons law? 2, Acceleration of an object depends on the mass of the object and the amount of the force
What is the third Newtons law? 3, For every action there is an equal and opposite reaction
What is the 3 Properties of air (1) Air takes up space
What is the 3 Properties of air (2) Air has mass
What is the 3 Properties of air (3) Air exerts pressure
What is weight? A downward-pulling force an object due to gravity, measured newtons, change wherever you go.
What is mass? Amount of matter in an object, stays the same wherever you are, measure KG
What affects drag? Size and shape
What is airfoil? A curved top and a more straight bottom, also called streamline shape, creates lift.
What is Force? Force is a push or pull that attracts things toward the centre of large objects. Earth's gravity causes people and objects to have weight.
What is Drag? The aerodynamic force that acts against an moving object moving through the air or another fluid. When you swim the drag of water slows you down.
What is Lift? The aerodynamic that acts perpendicular to the direction of motion, causing the fluid, causing the object to rise.
What is Thrust? The force that pushes a flying object forward. An aircraft engine produces thrust that propels the craft.
What are the causes that affects Drag? Shape and size, which stops air from moving if too big.