Science and EngineeringScience and Engineering

Where do we use this stuff?Where do we use this stuff?

What do you want to be when you What do you want to be when you grow up?grow up?

What do you like to do?What do you like to do?

Fields that Rely on PhysicsFields that Rely on Physics

Construction/BuildingConstruction/Building MedicineMedicine Sports performance and equipmentSports performance and equipment Automobile designAutomobile design Energy ResearchEnergy Research Space ProgramSpace Program Computer Development (Internet)Computer Development (Internet)

ContinuedContinued

AstronomyAstronomy Weather sciencesWeather sciences Earthquake researchEarthquake research Optics (telescopes, microscopes, cameras, Optics (telescopes, microscopes, cameras,

etc)etc) ArcheologyArcheology Cell phones, ipods, GPS, bluetooth…Cell phones, ipods, GPS, bluetooth… National Research LaboratoriesNational Research Laboratories ……....

What What TypesTypes of Forces are there? of Forces are there?

GravityGravityElectricElectricWeakWeakStrongStrong

How Strong are these forces?How Strong are these forces?

Gravity Gravity (strength = 1)(strength = 1)

Electric Electric (strength = 10(strength = 103636))

Weak Weak (strength = 10(strength = 102525))

Strong Strong (strength = 10(strength = 103838))

How do we use these forces?How do we use these forces?

GravityGravity• Snow skiSnow ski• Keep our cars (and other things) on the Keep our cars (and other things) on the

ground.ground.• PlumbingPlumbing

Why are water towers towers, and why are Why are water towers towers, and why are sewers underground?sewers underground?

How do we use these forces?How do we use these forces?

ElectromagneticElectromagnetic• LightsLights• ComputersComputers• MotorsMotors• LiftingLifting• CommunicatingCommunicating• FlyingFlying

Electric charge and forceElectric charge and force

charge chargeforce

Opposite ChargesAttract each other

Like ChargesRepel each other

Two Principles to KnowTwo Principles to KnowAn Electric Charge that is An Electric Charge that is

moving creates a moving creates a Magnetic Magnetic FieldField

A Magnet that is moving A Magnet that is moving creates an creates an Electric FieldElectric Field

What does Fermilab do?What does Fermilab do?

EarthEarth

AirAir

FireFire

WaterWater

StuffStuff

Pizza

From a Dew DropFrom a Dew Drop

How does an accelerator workHow does an accelerator work

Electric field (HIGH VOLTAGE) applies Electric field (HIGH VOLTAGE) applies force on a Proton because it has a force on a Proton because it has a charge.charge.

Magnets bend the charged Protons in a Magnets bend the charged Protons in a circle so it can come back to the place circle so it can come back to the place where the high voltage is located.where the high voltage is located.

When Protons are moving fast enough, When Protons are moving fast enough, smash them together.smash them together.

Build a giant detector to look at what Build a giant detector to look at what flies out of the collisions.flies out of the collisions.

Two Two Detector Detector NeutrinoNeutrino

Oscillation Oscillation ExperimentExperiment(Start 2005)(Start 2005)

Near Detector:

980 tons

Far Detector: 5400 tons

MINOS Experiment

Det. 2

Det. 1

D0 Detector

Large Hadron ColliderLarge Hadron Collider

To The Standard ModelTo The Standard Model

DemosDemos

Balloon sticking to the wallBalloon sticking to the wall Static electric fieldStatic electric field Electric motorElectric motor Magnet through the pipeMagnet through the pipe LevitationLevitation Ping Pong ball acceleratorPing Pong ball accelerator

outlineoutline

What kinds of jobs require PhysicsWhat kinds of jobs require Physics Example of forcesExample of forces How do we put these forces to useHow do we put these forces to use What is FermilabWhat is Fermilab