Lift, Drag, Thrust

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What is lift in the context of aerodynamics?

Back

Lift is the force that directly opposes the weight of an aircraft and holds the aircraft in the air. It is generated by the movement of the aircraft through the air and is influenced by the shape of the wings.

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What is drag in aerodynamics?

Back

Drag is the aerodynamic force that opposes an aircraft's motion through the air. It is caused by the friction of air molecules against the surface of the aircraft and can be affected by the shape and speed of the aircraft.

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Front

What is thrust in aviation?

Back

Thrust is the force that propels an aircraft forward. It is produced by engines and must overcome drag for the aircraft to accelerate.

Front

Explain Bernoulli's Principle in simple terms.

Back

Bernoulli's Principle states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure. This principle helps explain how lift is generated on an aircraft wing.

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What is the relationship between wind speed and wind pressure according to Bernoulli's Principle?

Back

According to Bernoulli's Principle, when wind speed is high, wind pressure is low.

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Why are the two forces (lift and weight) equal when an object is not moving?

Back

When an object is not moving, the forces acting on it are balanced, meaning that the lift generated is equal to the weight of the object, resulting in no net force.

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What is an aerodynamic shape?

Back

An aerodynamic shape is designed to reduce drag and improve the efficiency of an object moving through air. Common examples include streamlined shapes like airfoils.

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Front

What is drafting in the context of racing?

Back

Drafting is a technique where vehicles closely follow one another to reduce air resistance, allowing them to go faster with less energy.

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NGSS.MS-PS3-5

Front

What is the effect of grouping cars in a drafting formation?

Back

Grouping cars in a drafting formation reduces drag for each car, allowing them to travel faster than they would individually.

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Front

What are the three primary movements of an aircraft?

Back

The three primary movements of an aircraft are pitch, roll, and yaw.