Aerospace 1

​https://youtu.be/FCtrFOsCbRw

use this link to answer questions.​

Multiple Choice

What are the 4 forces on an airplane?

• thrust, lift, weight, drag

• water, fire earth,air

• thrust, inertia, drag, gravity

• thrust, air resistance, gravity, drag

Multiple Choice

Who flew the 1st successful aircraft?

• Amelia Earhart

• Jimmy Doolittle

• Wright Brothers

• Bessie Coleman

Multiple Choice

What is the lift formula and what symbol do we use for desnity?

• L=1/2 rhoClV2

• L=1/2 rhoClV^2

• F=m*a

• y=mx+b

Multiple Choice

What is the standard density?

• 3.14159265kg/m^3

• 1.2754kg/m^3

• 9.8m/s^2

• 1.2745kg/m^2

Open Ended

Where is the angle of attack?

Multiple Choice

As the angle of attack increases the coefficient of lift

• Increases

• Decreases

Multiple Choice

What factors contribute to the mass of an aircraft?

• fuel, drag, mass, gravity

• fuel, payload, weight, gravity

• fuel, payload, passengers, lift

• fuel, payload, passengers, aircraft weight

Multiple Choice

What is the formula to find the aircraft's weight?

• W=mg

• W=ma

• W=mv

• W=m

Multiple Choice

When mass increases weight

• Decreases

• Increases

Multiple Choice

Resistance limits the aircrafts

• acceleration

• velocity

• weight

• potential

Fill in the Blank

Pressure and velocity are _________ proportional.

Open Ended

What is Newtons 1st law?

Open Ended

What is Newtons 2nd law?

Open Ended

What is Newtons 3rd law?

Multiple Choice

A Boeing 737 with a mass of 3.6x10^4 kg is traveling eastbound at an acceleration of 165 m/s^2

What is the force of the aircraft? $$F=m\cdot a$$  

• 59400

• 5.94x10^4

• 59400000

• 5.49x10^4

Multiple Choice

An aircraft at standard cruising altitude is ascending at and angle of 20 degrees, at a velocity of 130 m/s.

What is the lift? $$L=\frac{1}{2}\rho C_Lv^2$$  

Hint: you need standard density

• 691000

• 196000

• 1.69x10^4

• 169000

Multiple Choice

Flight 1042 is about to land in San Antonio. The aircraft is travelling at an altitude of 1.06x10^4 meter and has 1.2x10^4 kg of fuel onboard as well as 2x10^4 kg worth of passengers and payload.

What is the weight?

• 163300

• 316300

• 313600

• 313

Multiple Choice

What is the lift (in Newtons) on a wing of an aircraft 7x10^3 meters in the air if the aircraft is climbing at 140 m/s?

$$p_1+\frac{1}{2}\rho v^2+\rho gh_1$$  

Hint: p1=101.325LPa

• 10092.685

• 100092.685

• 100029.685

• 100992.658