Chapter 21: Rocket Fundamentals Flashcards
Who conducted experiments from the Leaning Tower of Pisa?
Galileo
Who proved that objects of varying weights strike the ground at the same time, if released at the same time?
Galileo
Who were the first to use a rocket as a weapon of war?
The Chinese
Who is recognized as the Father of Modern Rocketry?
Dr. Robert Goddard
Rockets were first attached to aircraft in which World War?
World War I
Who was the English scientist who used spin stabilization for his rockets?
William Hale
Who was the Russian scientist who made the first computations for rocket flight into space?
Konstantin Eduardovich Tsiolkovsky
Who was the British artillery expert who built the first viable launch pad?
Colonel William Congreve
Who was the German engineer who devised the first rocket propelled by gunpowder?
Konrad Kyeser von Eichstadt
Who was the German who used more powerful liquid propellants than Robert Goddard?
Dr. Herman Oberth
Who developed mechanisms to correct deviations from planned flight paths?
Dr. Robert Goddard
The product of mass and velocity
Momentum
The cause of motion
Force
Application of force over time
Acceleration
The rate at which a body moves when force is applied
Velocity
Which is not a major system of modern rockets?
a. The airframe
b. The payload
c. The propulsion
d. The guidance
e. The control
b. The payload
(The four major systems exist to deliver whatever the rocket is carrying, the payload)
Which of the following doesn’t apply go the airframe system?
a. It provides a streamlined shape
b. It contains the other systems
c. It must be strong and heavyweight
d. It must withstand heat, stress, and vibration
c. It must be strong and heavyweight
Which is not a propulsion system used in rockets?
a. Chemical
b. Gas heating
c. Nuclear
d. Electric
c. Nuclear
Which is not a part of the guidance system?
a. A computer
b. An intertial platform
c. A star-tracking unit
d. Controls for the engine
d. Controls for the engine
What effect did Newton identify as the tendency of a rotating body to move away from its center of rotation?
The centrifugal effect
Which Law of Motion states that “a body at rest and a body in motion tend to remain in their respective states unless acted upon by some outside force?”
Newton’s First Law of Motion
Which Law of Motion states that “for every action, there is an equal and opposite reaction?”
Newton’s Third Law of Motion
Which Law of Motion states that “force = mass × acceleration?”
Newton’s Second Law of Motion
Rockets were replaced as a significant military weapon when artillery developed ______.
Riffling in the barrels
Whatever the rocket is carrying is defined as
The payload
Propellants are classified as either
Liquid or solid
Mutual gravitation exists between all bodies, regardless of size
TRUE
After WWII, both the Soviets and Americans acquired German rocket experts
TRUE
The skin of the Atlas rocket was so thin that, if not fueled up, it had to be pressurized to keep from collapsing.
TRUE
As with all liquid fuel rockets, the Saturn V’s first stage is made up mostly of fuel and oxidizer tanks.
TRUE
The control system is the system of the rocket that equates to the “brain”
FALSE
The homing system is a guidance system that missiles use to fly along a beam to their intended target
TRUE
