How can we help?
You can also find more resources in our
Select a category
Something is confusing
Something is broken
I have a suggestion
What is your email?
What is 1 + 3?
Water Rocket Vocabulary
Center of Gravity
the point within something at which gravity can be considered to act
De Laval Nozzle
a tube that is pinched in the middle
a projecting spout from which a fluid is discharged
front consisting of the conical head of a missile or rocket that protects the payload from heat during its passage through the atmosphere
a stabilizer that resembles the fins of a fish
highest point; the point farthest from the earth; OP. perigee
an instrument that measures the height above ground
An operation performed to verify the gas-tight integrity of gas piping following its installation or modification.
pull, as against a resistance
the act of applying force to propel something
the force of attraction between all masses in the universe
the tendency of a body to maintain is state of rest or uniform motion unless acted upon by an external force
the speed of an object in a particular direction
nonturbulent streamline flow in parallel layers (laminae)
The study of forces and the resulting motion of objects through the air.
two or more forces that are not equal and opposite of one another; can cause change in motion
Action / Reaction
Newton's 3rd Law
a body of matter without definite shape
move with force, "He pushed the table into a corner"
a rate of change of velocity
Newtons 1st Law
(Law of Inertia) an object in motion tends to stay in motion & an object at rest stays at rest unless acted upon by an outside force.
Newtons 2nd Law
(Force) when force is applied to an object it is accelerated in the direction of the force. (mass and force are inversely proportional)
Newtons 3rd Law
For every action there is an equal and opposite reaction
Holds the compressed air
purpose is to return the rocket safely to earth; includes parachutes, streamer, tumble system, helicopter, or glider
when the rocket is blasting water out the nozzle
the force or speed with which something moves
the cargo carried by the rocket
timer to control the deployment of the parachute