1. Rube Goldberg Explanation
Sawyer Ikeda
Toby Guenthner
Cate Gumpel
Kyle Jones

2. Step 1: Pull Wedge
Wedge – Object separating, lifting, or holding objects in place
Force of marble against wedge – Newtons

3. Step 2: Marble 1 hits Marble 2
Marble 1 hits Marble 2 and transfers its kinetic energy to Marble 2
Kinetic energy of Joules

4. Order
Steps 3-7 and Steps 8-10 happen simultaneously

5. Step 3: Marble 1 Falls Through Funnel
Marble 1 accelerates due to gravity
Falls with a force of 0.44 Newtons

6. Step 4: Marble 1 Through Screw
Screw – Mechanism that converts rotational motion to linear motion
Force of marble decreases by 1.5 meters per second

7. Step 5: Inclined Plane
Inclined Plane – Flat surface tilted at angle to reduce force required to do work
Used to guide marble to hit dominoes

8. Step:6 Dominoes
Toppling – When center of gravity of extends outside area of support
Each domino transfers its kinetic energy to the next domino

9. Step 7: Dominoes Hit Catapult Support
Wooden pole supports catapults weight box (3.725 kilograms)
Requires 0.5 Newtons to topple support

10. Step 8: Marble 2 Rolls Down Track
Velocity of 0.3 meters per second

11. Step 9: Marble Switchback
Potential energy to kinetic energy transfer
Velocity of 0.76 meters per second
Kinetic energy of 0.14 Joules

12. Step 10: Marble Drop To Catapult
Potential energy to kinetic energy transfer
Initial velocity of 0.53 meters per second
Velocity in air of 1.27 meters per second
Final velocity of 1.8 meters per second

13. Step 11: Catapult (Lever) Launch
Lever – Rigid object with fulcrum that multiplies input force
Marble launched with a force of 1.54 Netwons

14. Step 12: Funnel Catches Marble
Used funnel to catch various marble flight paths

15. Step 13: Hits Button Button releases car
Marble hits button with a force of 0.45 Newtons

16. Step 14: Car Drives Down Track
Car drives with a force of 0.08 N

17. Step 15: Car Hits Wood (Which Hits Mass)
Car hits wood and an equal force is applied to the mass
Kinetic energy of car transferred into kinetic energy of wood
Required force to move mass is 0.1 Newtons

18. Step 16: Pulley
Pulley – Wheel attached to axle designed to use a belt across its circumference
Pulley = holding mass with potential energy of 2.15 J (theoretical kinetic energy when released)

19. Step 17: Egg Cracked Purpose of machine – Crush/crack egg
Hits egg with an impulse of 1.5 Kilogram meters per second