A stealth bomber with a flying wing configuration.
What is the B-2?
100
Given the time to reach the ground is 10 seconds, and the initial x velocity is 5 m/s, what is the distance a ball travels in the x direction if its initial height is 4 m?
What is 50 m?
100
The law of inertia.
What is "an object at rest stays at rest and an object in motion stays in motion with the same speed and same direction unless acted upon by an unbalanced force?"
100
Work.
What is when a force acts on an object and causes it to displace?
100
What can reduce vorteces coming off the wings.
What is winglets?
200
A supersonic passenger plane that stopped flying in 2003 due to low passenger numbers and a crash (among other reasons).
What is the Concorde?
200
The point at which a bullet becomes a projectile.
What is the point where a bullet leaves the gun?
200
Three types of contact forces.
What are normal, friction, and drag?
200
Four types of energy.
What is kinetic, thermal, potential, mechanical, chemical, electromagnetic, nuclear, or sound?
200
This type of flow occurs at lower speeds.
What is laminar flow, as opposed to turbulent?
300
A 28% scale model of a theoretical tail-less fighter jet.
What is the X-36?
300
Given a bullet with an initial velocity of 30 m/s in the 45 degree direction, what are the initial x and y velocities?
What is 21.21 m/s?
300
The acceleration due to gravity on the Earth in SI and Imperial units.
What is 9.81 m/s^2 and 32.2 ft/s^2?
300
The destruction of energy.
What is impossible due to the conservation of energy.
300
The two types of 2D drag.
What are form/pressure drag and skin friction drag?
400
The decade this heavy bomber is supposed to be in service until.
What is 2040s, the B-52?
400
Given the initial x velocity is 20 m/s, and the initial y velocity is 15 m/s, and that the bullet is fired from a height of two meters, what is the total time it takes for the bullet to reach the ground?
What is .314 seconds?
400
The relation between direction of net force and acceleration in the second law equation.
What is the same direction?
400
The equations for potential and kinetic energy.
What is PE = mgh and KE = .5mv^2?
400
The difference between the two types of 2D drag (explain both).
What is form drag - drag caused by the shape of the object, caused by flow separation, and skin friction drag - friction between the object and air.
500
The main problem with the De Havilland Comet.
What is square windows?
500
If the initial x velocity is 10 m/s and the initial y velocity is 5 m/s, and the bullet is fired from 2 m, what is the peak height of the bullet?
What is 2.81 m?
500
Given a rocket having thrust 24,000,000 N, and an initial mass of 2,500,000 kg, what is the rocket's initial acceleration?
Follow up: what causes the acceleration to change?
What is 2.19 m/s^2, and the rocket losing fuel and thus mass?
500
Momentum.
What is mass*velocity?
500
Increases during the transition from laminar to turbulent flow.