1. 4/9/2011 It’s Only Rocket Science Guest: Dr. Amy Foster

2. TimeDescriptionModerator Notes 9:30am – 10:00am Set-up at Barclay Hopkins volunteer arrival and orientation Dr. Foster arrives Material-set up: Ami, Kristin, Blaze 10:00am – 10:10amBarclay Student Arrival; Make name-tagsMorning snacks 10:10am – 10:15amWelcome and Intro of Today’s Activities 10:15am – 10:30am Dr. Foster Introduction/Discussion Motivation/path into career; Q&A 10:30am – 10:45am Solar Power demo Rocket Science Word-match game 10:45am – 11:00pmSwitch and repeat 11:00am – 11:20amSolutions/Explanations and tie back into rocketsDr. Foster’s slides/demos 11:20am – 11:55amDesign and build rockets *consider ratio of water to air *reinforce concepts just explained Small groups of 3-4 11:55am – 12:00pmSecond chance at Matching GameWinner launches first! 12:00pm – 12:30pmLaunch outside or gym(rain location) 12:30pm – 12:45pmConcluding Remarks/ Preview of next week 12:45pm – 1:00pmLunch 1:00pm – 1:30pmClean-up

3. The sun produces heat and light through nuclear fusion Nearly all energy on earth can be traced to the sun plants – photosynthesis humans – eating plants and animals fossil fuels – decayed plants and animals green energy – wind, solar, hydro

4. Solar cells Convert energy from the Sun (photons) to electricity (moving electrons)

5. Solar cells were first developed for the space program. Energy required for: Propulsion in space Powering electronics Solar cells – lighter and require less maintanence Get energy from sun – do not require refueling

6. Exercise: Fan speed Try illuminating the solar cell with various light sources Sun coming through a window flashlight room lights halogen light Which light source makes the fan spin the fastest? Does the fan spin fastest with the bright or dim light source?

7. Objects at rest stay at rest. Objects in motion stay in motion... unless acted upon by an outside force. Newton’s First Law of Motion

8. Newton’s Second Law of Motion

9. A measure of how much matter is contained in an object. Unless altered, this remains the same whether the object is on Earth, in Earth orbit, or on the Moon. MASS

10. A change in either the speed or direction of motion. For example, when you step on the accelerator pedal of a car, you cause an increase in this. ACCELERATION

11. A push or a pull on an object. When an object is at rest, this is balanced. When an object is in motion, this is unbalanced. FORCE

12. The force of attraction between masses. The force that makes objects fall to the ground. GRAVITY

13. WEIGHT

14. Resistance to changes in motion. The more mass, the more resistance. INERTIA

15. How hard it is to stop an object in motion. Mass times velocity. MOMENTUM

16. For every action there is an equal and opposite reaction. Newton’s Third Law of Motion

17. Reaction Action

18. How do you ensure that the rocket flies in a straight line? How do you control the change of direction? Why do the gases coming out of the rocket move much faster than the rocket? As fuel is consumed, what happens to the mass of the rocket?

19.  rocket vessel material (paper or plastic)  rocket vessel size (big or small bottle)  amount of water in bottle  launching angle  air pressure (number of pumps)  optional: nose cone and/or tail fins  Winner: Farthest horizontal travel distance

20.  angle for maximum horizontal travel  air to water ratio

21.  What is one thing you learned?  What was the best part of the day?  What is one thing you wish you could have done?  Will you be back next week? Answer: YES!

22.  Talk from Allen Herbert, CEO of Phezu LLC  Friday, 12p -2p  Barclay Gym!!!  45min – Stellar Navigation

23.  Guest: Dr. Eileen Haase  Kelly Barclay  Planning Committee  Ami K.  Chorong  Blaze  Kristin  Ehsan  JHU Student volunteers  JHU Faculty Involvement Grant