The word studying is made up of two words originally “students dying.”
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The word studying is made up of two words originally “students dying.”
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The word studying is made up of two words originally “students dying.”. WHAT ARE TWO WAYS TO GET NUCLEAR ENERGY?. WHAT ARE TWO WAYS TO GET NUCLEAR ENERGY? NUCLEAR FUSION AND NUCLEAR FISSION?. WHAT IS THE DIFFERENCE BETWEEN NUCLEAR FUSION AND NUCLEAR FISSION?. - PowerPoint PPT Presentation
Transcript of The word studying is made up of two words originally “students dying.”
The word studying is made up of two words originally “students dying.”
WHAT ARE TWO WAYS TO GET NUCLEAR ENERGY?
WHAT ARE TWO WAYS TO GET NUCLEAR ENERGY?
NUCLEAR FUSION AND NUCLEAR FISSION
WHAT IS THE DIFFERENCE BETWEEN NUCLEAR FUSION AND NUCLEAR FISSION?
WHAT IS THE DIFFERENCE BETWEEN NUCLEAR FUSION AND NUCLEAR FISSION?
NUCLEAR FUSION INVOLVES FUSING TWO SMALL NUCLEI TOGETHER TO FORM A LARGER NUCLEUS.
NUCLEAR FISSION INVOLVES SPLITTING A LARGE NUCLEUS INTO SMALLER NUCLEI.
CAN YOU MAKE A BOMB OUT OF FUEL RODS FROM A NUCLEAR REACTOR? WHY?
CAN YOU MAKE A BOMB OUT OF FUEL RODS FROM A NUCLEAR REACTOR? WHY?
NO, REACTOR FUEL IS ONLY 3.5% URANIUM 235. YOU NEED AT LEAST 90% PURITY TO MAKE A BOMB.
WHAT IS A CHAIN REACTION?
WHAT IS A CHAIN REACTION?
A REACTION THAT TRIGGERS OTHER SIMILAR REACTIONS
WHERE DO WE STORE SPENT (USED) REACTOR FUEL?
WHERE DO WE STORE SPENT (USED) REACTOR FUEL?
AT THE REACTOR WHERE IT WAS GENERATED
WHAT IS HALF LIFE?
WHAT IS HALF LIFE?
THE LENGTH OF TIME THAT IS REQUIRED FOR HALF OF A RADIOACTIVE ISOTOPE TO DISENTEGRATE (CHANGE) TO ANOTHER ISOTOPE
WHICH WOULD BE MORE DANGEROUS, AN ISOTOPE WITH A SHORT HALF LIFE OR AN ISOTOPE WITH A LONG HALF LIFE? WHY?
WHICH WOULD BE MORE DANGEROUS, AN ISOTOPE WITH A SHORT HALF LIFE OR AN ISOTOPE WITH A LONG HALF LIFE? WHY?
ONE WITH A SHORT HALF LIFE – IT IS BREAKING DOWN FASTER AND WILL GIVE OFF MORE RADIATION
WHAT IS BACKGROUND RADIATION?
WHAT IS BACKGROUND RADIATION?
THE NATURAL RADIATION AROUND US AT ANY TIME
HOW DO WE MEASURE RADIATION?
HOW DO WE MEASURE RADIATION?
WITH A GEIGER COUNTER
LIST THE 3 MOST COMMON TYPES OF RADIATION IN ORDER OF DANGER FROM LEAST TO GREATEST.
LIST THE 3 MOST COMMON TYPES OF RADIATION IN ORDER OF DANGER FROM LEAST TO GREATEST.
ALPHA
BETA
GAMMA
WHAT IS LIGHT?
WHAT IS LIGHT?
A FORM OF ENERGY WITH BOTH WAVE AND PARTICLE PROPERTIES
WHAT IS WAVELENGTH?
WHAT IS WAVELENGTH?
THE DISTANCE FROM PEAK TO PEAK IN A WAVE
WHAT IS THE WAVELENGTH RANGE FOR VISIBLE LIGHT?
WHAT IS THE WAVELENGTH RANGE FOR VISIBLE LIGHT?
400 nm TO 700 nm
WHAT KIND OF SPECTRUM DOES A SOLID EMIT?
WHAT KIND OF SPECTRUM DOES A SOLID EMIT?
A CONTINUOUS SPECTRUM
WHAT DOES THE PEAK (MAXIMUM) WAVELENGTH OF THE CONTINUOUS SPECTRUM EMITTED BY A SOLID DEPEND ON?
WHAT DOES THE PEAK (MAXIMUM) WAVELENGTH OF THE CONTINUOUS SPECTRUM EMITTED BY A SOLID DEPEND ON?
THE TEMPERATURE OF THE SOLID
WHAT KIND OF SPECTRUM DOES A GAS EMIT?
WHAT KIND OF SPECTRUM DOES A GAS EMIT?
A LINE SPECTRUM
HOW COULD YOU GET ATOMS TO EMIT LIGHT?
HOW COULD YOU GET ATOMS TO EMIT LIGHT?
YOU WOULD HAVE TO SUPPLY ENOUGH ENERGY TO THE ATOMS TO KICK THE ELECTRONS UP TO HIGHER ENERGY LEVELS.
WHEN THE ELECTRONS RETURN TO THE GROUND STATE (LOWEST ENERGY LEVEL), THE DIFFERENCE IN ENERGY IS EMITTED AS LIGHT.
HOW DOES THE ENERGY PER PHOTON RELATE TO WAVELENGTH?
HOW DOES THE ENERGY PER PHOTON RELATE TO WAVELENGTH?
AS THE WAVELENGTH OF LIGHT DECREASES, THE ENERGY PER PHOTON INCREASES.
E = hC/l
WHAT IS THE DOPPLER EFFECT?
WHAT IS THE DOPPLER EFFECT?
IF AN OBJECT IS MOVING TOWARDS YOU, THE WAVELENGTH IS SHIFTED TO SHORTER WAVELENGTH.
IF AN OBJECT IS MOVING AWAY FROM YOU, THE WAVELENGTH IS SHIFTED TO LONGER WAVELENGTH.
WHAT IS SPECIAL ABOUT THE SPEED OF LIGHT?
WHAT IS SPECIAL ABOUT THE SPEED OF LIGHT?
IT IS THE FASTEST THING IN THE UNIVERSE.
WHAT ARE FOUR WAYS THAT YOU COULD EXCITE ATOMS TO EMIT LIGHT?
WHAT ARE FOUR WAYS THAT YOU COULD EXCITE ATOMS TO EMIT LIGHT?
•THERMAL (HEAT) EXCITATION
•CHEMICAL EXCITATION (CHEMILUMINESCENCE)
•LIGHT – FLUORESCENCE (WITH VERY SMALL DELAY)
•LIGHT – PHOSPHORESCENCE (WITH LONG DELAY)
