The study of the motion of air, particularly when it interacts with an object.
What is aerodynamics?
100
An English physicist, mathematician, astronomer, philosopher, and alchemist born in 1666. Discovered 3 laws of motion.
Who is Isaac Newton?
100
Aerodynamically designed to provide a smooth flow of air around the rocket body.
What is a nose cone?
100
A riser.
What is an upward pipe to release a gas or liquid?
100
When a rocket is poorly built or designed and has wind and thrust instabilities.
What is an unstable rocket?
200
A force generated by gravity.
What is weight?
200
For every action there's an opposite but equal reaction
What is Newtons 3rd Law, The Law of Reciprocal Actions?
200
Guide the rocket on a straight flight and gives the essential stability for true flight.
What are fins?
200
An unbalanced sway motion from side to side?
What is Oscillation?
200
An up or down movement of the nose of the rocket.
What is pitch?
300
This occurs when two surfaces meet at sharp angles and create a vortex.
What is interference drag?
300
The change of momentum of a body is proportional to the impulse, impressed on the body, and happens along the straight line on which that impulse is impressed.
What is Newtons 2nd Law, The Law of Force (F=MA)?
300
A 2 liter soda or pop bottle that serves as the propulsion compartment or "engine" of the water rocket.
What is the body?
300
Increases sink rate and drift distance to help on a windy day
What is a spill hole?
300
When the rocket rotates around the center of gravity.
What is roll?
400
An aerodynamic resistance to the motion of an object through a fluid.
What is drag?
400
Objects in motion will stay in motion in a straight line unless acted upon by an unbalanced force.
What is Newtons 1st Law, The Law of Inertia?
400
An optional section that could hold a parachute or a payload.
What is a payload section?
400
Made of crepe paper, Mylar, Dura-Lar, and rip stop nylon. Enables fast rocket recovery.
What are streamers?
400
When a model rocket after lift off turns into the wind.
What is weather cocking?
500
Air in the immediate vicinity of the rocket.
What is a boundary layer?
500
Equal to the amount of force required to accelerate a mass of one kilogram at a rate of one meter per second per second.
What is a Newton?
500
A cylindrical or round spout at the end of the bottle, used to control the release of the water.
What is a nozzle?
500
Can be made of Carpet thread or Kevlar, and joins the canopy of the parachute to the harness.
What are shroud lines?
500
When you add or remove weight in the nose cone, redistribute the payload, and increase or decrease the air frame length.