Parts of the Rocket
If the _______ part of the rocket is successful, then the egg is GUARANTEED survival.
Once the rocket is in flight, it continues moving upward for a time. (Newton's 1st Law) What forces eventually stop the rocket’s upward motion?
Air resistance and gravity
What would happen to your rocket's if we launched with more force? (more than 80 psi)
The rocket would launch higher
What are the four types of friction?
Static, Sliding, Rolling, Fluid
What is a unit for speed?
m/s, mi/hr, km/hr, etc.
If your rocket thruster (bottle) does not launch, what is wrong with it?
There is a hole in the thruster bottle.
If your rocket is heavier, how will it's acceleration compare to one that is lighter?
More mass = less acceleration
Less mass = more acceleration
How does the nose cone aid with forces and Newton's 1st law with the launch?
It reduces the unbalanced forces of the rocket pushing it downwards due to its aerodynamic shape.
What types of friction are involved in golf?
Rolling friction = golf ball lands and rolls
Fluid friction = ball flying through air
Static friction= person standing at tee
What is the difference between speed and velocity?
Direction
What happens if the fins are uneven?
The rocket does not fly straight
What pushes your rocket up? (Action Reaction law)
The water being rushed out downwards.
If you add larger fins to your rocket, which increases air resistance, how does this affect the rocket’s acceleration and flight according to Newton’s Second Law?
Larger fins will increase the air resistance, reducing its ability to reach peak height and slowing it down.
What are the other names for fluid friction?
Drag and air resistance
Give an example of velocity.
speed and direction must be included (With units)
What part of the rocket connects to the height of the rocket launch?
Nose cone
When a parachute opens, what is the opposing force to gravity?
Air resistance/ fluid friction
What role does Newton’s Third Law play when the rocket hits the ground without a parachute deployed?
The equal and opposite reaction, the harder the rocket hits the ground the amount of force that the ground pushes back onto the rocket, causing the rocket and egg to break?
What are microwelds?
microscopic bumps that hold together surfaces during static friction
Is this speed, velocity, or acceleration? While standing at homeroom, Mr. Jones noticed someone wearing headphones, and he then ran to them to confiscate their headphones.
Acceleration- sped up
Why should your parachute have a small hole at the top?
Why might the egg crack if the parachute deploys too suddenly?
The egg continues to move upward due to inertia. If the rocket slows down too abruptly, the egg may crack.
Why did some eggs survive even when the parachute did not deploy?
Either they did not have a fast speed and high mass aka low amount of force. Or the grass absorbed the shock/force of the rocket.
What is the definition of friction?
A force that opposes motion when two surfaces are rubbing against each other
What is the formula for acceleration?
(vf-vi) / change in time