LeCopy of Astrodynamics - Student Workbook - Fall 2025

Multiple Choice

Why is it important to study astrodynamics when exploring space and developing launch vehicles?

• To understand how to send payloads from Earth into space efficiently

• To learn about the history of space exploration

• To design satellites for communication

• To explore planets for colonization

Open Ended

What are some key challenges engineers face when designing a launch vehicle to send a satellite into space?

Multiple Choice

Which of Newton's laws of motion is most relevant to the operation of rockets, and why?

• Newton's First Law, because rockets remain at rest until acted upon by a force.

• Newton's Second Law, because rockets accelerate based on force and mass.

• Newton's Third Law, because rockets move by expelling exhaust gases in the opposite direction.

• None of Newton's laws are relevant to rockets.

Open Ended

Why did the Saturn V rocket get faster as more fuel burned?

Open Ended

What is thrust?

Open Ended

Describe Newton’s 3rd law of motion in your own words.

Fill in the Blank

A payload is an object being carried by the launch vehicle, such as a satellite or

.

Multiple Select

Which of the following are examples of payloads carried by rockets?

• Satellites

• Astronauts

• Lunar Landers

• Rovers

Multiple Choice

What is the main goal of the Balloon Rocket Design Challenge?

• To build the fastest rocket

• To construct a balloon-powered rocket that carries the most payload to the ceiling

• To use the most materials possible

• To build the tallest rocket

Multiple Choice

Which of the following items is NOT included in the student kit for the balloon rocket design challenge?

• Long balloons

• Pumps

• Binder clips

• Clothes pins

Fill in the Blank

What are the four main requirements for building the balloon-powered rocket as described in the lesson?

Multiple Select

Which of the following are essential steps in setting up the string for the balloon rocket test?

• Tie string to a paper clip

• Attach the string to the ceiling or a high point

• Secure the string to the ground with tape, weight, or by hand

• Inflate the balloon before attaching the string

Open Ended

Explain how the testing setup for the balloon rocket ensures that the experiment can be repeated multiple times.

Open Ended

Describe one advantage of using multiple balloons (multi-booster) in your rocket design based on the example launches.

Multiple Choice

What is the purpose of creating a proof of concept before finalizing your engineering design?

• To test if the idea has potential and learn from initial results

• To immediately build the final product

• To skip the testing phase

• To avoid recording results

Multiple Choice

Based on the example designs shown, what are two features that different rocket prototypes might have?

• Multiple balloons and different payload placements

• Only one balloon and no payload

• No structural support

• No variation in design

Open Ended

Why is it important to consider the placement of the payload and the number of balloons when designing your rocket?

Fill in the Blank

What is the formula to calculate thrust from a rocket? Fill in the blank: F_T =

* v_e

Fill in the Blank

According to the text, what is thrust?

Open Ended

Why must the force of thrust be greater than the force of gravity for a rocket to take off?

Multiple Choice

What is the unit of mass flow?

• kg/s

• m/s

• kg/m^3

• L/s

Multiple Choice

What is the formula for calculating the volume of a cylindrical balloon?

• V = C × L

• V = C^2 × L / 4π

• V = π × C × L

• V = L / C^2

Multiple Choice

Which measurements are needed to calculate the volume of the balloon before takeoff?

• Length and circumference

• Length and diameter

• Circumference and area

• Time and volume

Fill in the Blank

The density of air is

kg/m^3.

Open Ended

Explain how you would determine the mass flow rate of air from a balloon rocket using the measurements and formulas provided.

Open Ended

According to the text, what is exit velocity?

Open Ended

Reflecting on today's lesson about astrodynamics and launching payloads into space, what is one question you still have or one concept you would like to explore further?

Multiple Choice

What are the main steps involved in completing a space mission challenge as described in the lesson?

• Designing the launch vehicle and docking the payload

• Building a launch pad and fueling the rocket

• Training astronauts for the mission

• Monitoring weather conditions before launch