Redstone
in 1405, a German engineer by the
name of Konrad Kyeser von Eichstadt devised a rocket
that was propelled by _____.
gunpowder
For every action, there is an equal and opposite
____.
reaction
It is the point at which a rocket reaches its highest altitude and begins a return to Earth.
Apogee
The science and study of air in motion.
Aerodynamics
Slowing down or decreasing speed.
Deceleration
During the latter part of the 17th century the scien-
tific foundations for modern rocketry were laid by Sir
_____ _____.
Isaac Newton
The term "____" is defined as the rate of
change in velocity with respect to time.
acceleration
The model rocket engine is designed to provide
____ and to provide forward motion.
thrust
An instrument that measures acceleration.
Accelerometer
The length of time in flight.
Duration
Even with improvements in stabilization the rocket
was never used as a major military weapon until the
____ century.
20th
Peak altitude is also known as ____.
apogee
The thrust that an engine creates is measured in
terms of "_____" over a period of time in "seconds."
Newtons
A device that reads in feet of altitude based on atmospheric pressure in inches of mercury.
Altimeter
An object (s) that is carried on board of a rocket during its flight. Not normally a permanent fixture of the rocket.
Payload
_____ _____ is considered to be the father of
practical modern rocketry
Robert Goddard
One of the first things a rocket builder learns is that
a model will not fly right unless it is aerodynamically ____.
stable
Another term is ____ ____
and this is the total power produced by the engine
total impulse
The balancing point of all of the mass. This is
also known as the Center of Mass
Center of Gravity
The flight path of a model rocket.
Trajectory
Werner von Braun was one of the most important
figures in the advancement of ____ ____ in
aerospace history
space exploration
Although he lived hundreds of years ago, ____ ____ ____ is one of the most highly regarded scientists of
all time. His Laws of Motion are still considered to be as valid today as they were in the Seventeenth Century.
Sir Isaac Newton
All model rocket engines comply with the National Fire Protection Association and are certified by the ____ ____ ____ ____ (NAR).
National Association of Rocketry
Forces acting upon an object to slow it down.
Drag
Mass times velocity equals ____.
Momentum