The word studying is made up of two words originally “students dying.”

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Presentation transcript:

The word studying is made up of two words originally “students dying.”

WHAT ARE TWO WAYS TO GET NUCLEAR ENERGY?

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?

NO, REACTOR FUEL IS ONLY 3.5% URANIUM 235. YOU NEED AT LEAST 90% PURITY TO MAKE A BOMB.

WHAT IS A CHAIN REACTION?

A REACTION THAT TRIGGERS OTHER SIMILAR REACTIONS

WHERE DO WE STORE SPENT (USED) REACTOR FUEL?

AT THE REACTOR WHERE IT WAS GENERATED

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?

ONE WITH A SHORT HALF LIFE – IT IS BREAKING DOWN FASTER AND WILL GIVE OFF MORE RADIATION

WHAT IS BACKGROUND RADIATION?

THE NATURAL RADIATION AROUND US AT ANY TIME

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.

ALPHA BETA GAMMA

WHAT IS LIGHT?

A FORM OF ENERGY WITH BOTH WAVE AND PARTICLE PROPERTIES

WHAT IS WAVELENGTH?

THE DISTANCE FROM PEAK TO PEAK IN A WAVE

WHAT IS THE WAVELENGTH RANGE FOR VISIBLE LIGHT?

400 nm TO 700 nm

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?

THE TEMPERATURE OF THE SOLID

WHAT KIND OF SPECTRUM DOES A GAS EMIT?

A LINE SPECTRUM

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?

AS THE WAVELENGTH OF LIGHT DECREASES, THE ENERGY PER PHOTON INCREASES. E = hC/

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?

IT IS THE FASTEST THING IN THE UNIVERSE.

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)