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The Great Egg Drop
Conversano & Olmos, The Great Egg Drop, Nov. 5, 2012 2
Real-Life “Egg Drops”
• Mars Rovers (2004)– Descent onto Martian surface
• Giant airbags• Bounced on surface until coming
to rest
• Felix Baumgartner (2012)– Highest free-fall in history
• Free fall altitude: 39045 m (128100 ft)
• Speed attained: 1342.8 km/h• Free fall time: 4:20 min
Conversano & Olmos, The Great Egg Drop, Nov. 5, 2012 3
Acceleration: A Review
• The rate at which the velocity of an object changes
– Constant• Velocity (speed and/or
direction) changes by the same amount every second
– Changing• Velocity (speed ad/or
direction) changes by a different amount every second
Gravity
Centripetal
Forward
Conversano & Olmos, The Great Egg Drop, Nov. 5, 2012 4
Forces: A Review
• A push or a pull on an object – Applied– Normal– Friction
FG
Friction
Applied
Conversano & Olmos, The Great Egg Drop, Nov. 5, 2012 5
Newton’s First Law of Motion
“Objects in motion stay in motion and objects at rest stay at rest unless acted on by an external force”
• All objects have inertia– A tendency not to change their
motion• Remain at rest• Remain in motion
Conversano & Olmos, The Great Egg Drop, Nov. 5, 2012 6
Newton’s Second Law of Motion
“The acceleration of an object is created by a net force on the object”
• F = m a– For a given object, a larger
force generates a larger acceleration
– For a given force, a higher mass generates a lower acceleration
Conversano & Olmos, The Great Egg Drop, Nov. 5, 2012 7
Newton’s Third Law of Motion
“For every action,
there is an equal and opposite reaction”
Conversano & Olmos, The Great Egg Drop, Nov. 5, 2012 8
Egg Drop Requirements Overview• Materials
– 4 types can be selected – Limited supply, so plan ahead
• Size– Must fit inside a 10” sphere
• Design– Complete accurate sketch before beginning construction– Must be approved before building– BE CREATIVE!!!
• Remember, a simple shell doesn’t help the egg survive alone!