Water rocket journal

What have you learned about the history of rockets and space travel? Write a summary on the blog about something or someone you found interesting and tell why.

I learned that it Came a long way starting from  a model pigeon, that used steam to propel it forward in the 4th century B.C, to making full model rockets in the 20th century A.D. One thing I found interesting is that the soviets sent a dog to space

Now that you know about the basic parts of a rocket and what they do, write about each part and its importance in your own words. What will be different on your water rocket than on a “real” rocket and why?

Nose Cone: is important because it is the first part that goes in the air, it’s what helps the rocket punch through the earth

payload: the payload is an optional part, but important if u want to transfer some object or subject

Propulsion: is important because it what makes the rocket go up

Fins: fins are important to help stabilize the rocket so it goes straight and doesn’t wobble

Write a little on the blog about how to find the Center of Pressure and the Center of Gravity on your rocket and why they are important.

Center Of pressure: to find the center of pressure make a cardboard cutout of your rocket. Take the cardboard rocket and balance it on a ruler . Mark where it balances then mark the same spot on your real rocket

Center of gravity : get a piece of string and tie it around your rocket, using the string to hold the rocket and see if it balances, if it doesn’t, move the string closer to the fins or the nose one until it balances

The center of gravity is what makes the rocket stay balanced and the center of pressure. The center of pressure is important because it’s the point against which the wind appears to push.

Based on what you have learned about rocket design (nose cone & fins) describe what your rocket will look like and why you chose that design on the blog. My rocket will look like this, with a nose cone and 4 fins at the bottom to stabilize it

 

 

 

Principle Of Flights

  1. Draw a path of trajectory of your rocket

2. Which force is acting on the rocket at the moment of launch? (use arrows to indicate direction)

3.  As the rocket was half-way up, which force(s) is/are acting on the rocket?

Drag,Thrust,weight,lift

4. As the rocket begins to veer into another direction, which force is acting on the rocket? Explain why this is happening.

when the thrust goes down  so does the  lift which makes drag and weight pull the rocket down to the ground.

5.(A) Did some rockets work better than others?

yes all of them were different in some way, some went more far some went less far

5. (B)How does the shape of the nose and fin effect the trajectory of the rocket?

it helps stabilizes it, however if it is uneven or to heavy it will weight the ship down

5.(C)Explain in terms of the four forces that act on a rocket ship.

the fin can help the lift by making a a low pressure fast air zone

it can make the weight and drag bigger depending on shape and material

it can  effect thrust by cutting through the air

                   ROCKET SIMULATIONS

  1. What was your maximum height and speed? What was the Mass, Thrust and Thrust time on your high score?

2. Why does the rocket fling around the moon/Earth? What is an orbit?

Because gravity weights the rocket down

An orbit is when an object goes around and around and around another object\

3 .What is the co-efficient of drag?

4.