Drone Physics Lesson 2

The Force Awakens:

I can demostrate the forces that apply to lift

Open Ended

What does Bernoulli's principle tell us about air pressure?

• Lift: The upward force that allows an object to overcome gravity and stay in the air.

• Factors affecting lift: Angle of attack, airfoil shape, air density, and velocity.

• Angle of attack: The angle between the wing's chord line and the oncoming airflow.

• Airfoil shape: The shape of the wing that determines how air flows around it.

• Air density: The mass of air molecules per unit volume.

• Velocity: The speed at which the air flows over the wing.

Bernoulli's Principle

Bernoulli's Principle states that as the speed of a fluid increases, its pressure decreases. This principle explains how lift is generated on an airplane wing. The curved shape of the wing causes the air above it to move faster, creating lower pressure and higher pressure underneath, resulting in lift.

Open Ended

Discus with a neighbor what Bernoulli's Principle is about.

It Is Raining.

Cherokee: A-ga-sga

Syllabary: ᎠᎦᏍᎦ

​It Is Cloudy.

Cherokee: U-lo-gi-la

Syllabary: ᎤᎶᎩᎳ

It Is Sunny.

Cherokee: A-ga-li-ha

Syllabary: ᎠᎦᎵᎭ

It Is Snowing.

Cherokee: Gu-ti-ha

Syllabary: ᎫᏘᎭ

Cherokee Language

Newton's three Laws

• Newton's 1st law tells us that an object won't change its motion unless acted upon by a force.

• Newton's 2nd law tells us that heavier objects need a larger force to move them.

• Newton's 3rd law tells us that for every action there is an equal and opposite reaction.

Multiple Choice

Which of Newton's Laws would move a aircraft?

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

• Newton's Fourth Law

Force of Flight

Lift is the force that allows airplanes to fly. It is generated by the shape of the wings and the flow of air over them. Without lift, airplanes would not be able to overcome the force of gravity and stay airborne. Other forces like Thrust, Drag, and Gravity also play a role in flight, but Lift is the key force that keeps airplanes in the sky.

Multiple Choice

What is the force that allows airplanes to fly?

• Thrust

• Drag

• Gravity

• Lift

Factors Affecting Lift

Trivia: The angle of attack, airfoil shape, air density, and velocity are the key factors that affect lift. The angle of attack refers to the angle between the wing's chord line and the oncoming airflow. Airfoil shape determines how air flows over the wing. Air density affects the amount of lift generated. Velocity plays a crucial role in lift production. Higher velocity results in greater lift.

Match

Match the following

• It Is Snowing

• It Is Cloudy

• It Is Sunny

• It Is Raining

Gu-ti-ha

U-lo-gi-la

A-ga-li-ha

A-ga-sga

• Gu-ti-ha

• U-lo-gi-la

• A-ga-li-ha

• A-ga-sga

Match

Match the following

• weight

• lift

• drag

• thrust

angle

force

force

force

• angle

• force

• force

• force

Multiple Select

What factors affect lift?

• Angle of attack

• Airfoil shape

• Air density

• Velocity

Match

Match the following

• angle of attack
• camber
• lift

• drag

• thrust

angle between the oncoming air or relative wind and a reference line on the airplane

curvature of an airfoil

force that opposes the motion of an aircraft through the air

force that acts opposite to the weight of an aircraft

force that propels an aircraft forward

• angle between the oncoming air or relative wind and a reference line on the airplane

• curvature of an airfoil

• force that opposes the motion of an aircraft through the air

• force that acts opposite to the weight of an aircraft

• force that propels an aircraft forward

Open Ended

List the four forces of lift

Multiple Choice

When weight is greater than lift, an airplane descends?

• True

• False