Created for CVCA Physics By Dick Heckathorn 2 June 2K + 5 REFRACTION DEMOS Created for CVCA Physics By Dick Heckathorn 2 June 2K + 5
PARALLEL BLOCK LOOK AT YOUR FINGER THROUGH THE BLOCK AS YOU ROTATE THE BLOCK. LOOK AT SOME PRINTING THROUGH THE BLOCK AS YOU ROTATE THE BLOCK. CAN YOU EXPLAIN WHAT IS HAPPENING? 0-30
O-30 Parallel Block
CALCITE CRYSTAL PLACE THE CRYSTAL ON TOP OF SOME PRINTING. ROTATE THE CRYSTAL WHILE LOOKING AT THE PRINT. HOW MANY IMAGES CAN YOU SEE? EXPLAIN WHAT IS HAPPENING? 0-31
O-31 Calcite Crystal
ULEXITE – T.V. STONE PLACE THE ULEXITE ON TOP OF SOME PRINTING. ROTATE THE CRYSTAL WHILE LOOKING AT THE PRINT. CAN YOU EXPLAIN WHAT IS HAPPENING? 0-31A
O-31 A Ulexite Crystal
REAPPEARING COIN PLACE A COIN IN AN EMPTY DISH. PLACE YOUR HEAD SO THAT YOU JUST CANNOT SEE THE COIN. HAVE SOMEONE POUR WATER INTO THE DISH. WHAT IS HAPPENING? O-32
O-32
PLACE TWO COINS ON THE TABLE PLACE A BEAKER ON TOP OF 1 COIN. SHIFTING COIN PLACE TWO COINS ON THE TABLE EYE WIDTH APART PLACE A BEAKER ON TOP OF 1 COIN. POUR WATER IN THE BEAKER WHILE LOOKING AT EACH COIN WITH ONE EYE. WHAT HAPPENED? O-33
O-33
PENNY DROP WHILE LOOKING ONLY THROUGH THE END OF THE TANK, DROP A PENNY INTO THE BEAKER. DO NOT TOUCH THE WATER WITH THE COIN BEFORE YOU DROP IT. EXPLAIN WHY THE COIN DID NOT DROP INTO THE BEAKER. O-33A
O-33A
MYSTERY ROD LOOK AT THE LETTERS USING ROD-A WHY ARE SOME RIGHT SIDE UP… WHILE OTHERS ARE UPSIDE DOWN? REPEAT USING ROD-B REPEAT USING ROD-C WHAT IS GOING ON? 0-34
O-34
O-34
O-34
CABLE CAR REFRACTION EXPLAIN THE CHANGE IN HOW THE CAR LOOKS WHEN YOU CHANGE THE DIRECTION OF YOUR OBSERVATION? O-34A
IMMERSION OIL REMOVE CAP WITH GLASS ROD ATTACHED. PLEASE DO NOT SPILL. REPLACE CAP WHILE LOOKING AT GLASS ROD IN THE OIL. WHAT HAPPENED TO THE ROD? O-35
DISAPPEARING COIN PUT A COIN UNDER AN EMPTY BEAKER. LOOK AT THE COIN THROUGH THE SIDE OF THE BEAKER. POUR WATER INTO THE BEAKER. WHAT HAPPENED TO THE COIN? 0-38
PAPER WEIGHT HOW MANY DOTS CAN YOU SEE WHEN LOOKING INTO THE TOP OF THE GLASS PAPER WEIGHT? NEXT, COVER HALF THE TOP WITH YOUR HAND WHILE LOOKING INTO THE OTHER HALF. WHAT DO YOU OBSERVE? O-38A
14-CARET RING COVER HALF THE TOP OF THE RING WITH YOUR HAND WHILE LOOKING INTO THE OTHER HALF. WHILE LOOKING INTO THE RING UNDER AN INCANDESCENT LIGHT BULB, ROTATE THE RING WHAT DO YOU OBSERVE ? 0-38B
O-38B
RAISING THE PRICE… FIRST HOLD THE BLUE AND THEN THE GREEN FILLED MUG AT EYE LEVEL? ARE THEY FULL? PLACE EACH MUG INTO THE CONTAINER WITH WATER IN IT. 0-39
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O-39
RAISING THE PRICE… Green Mug Blue Mug Mass Mug (g) 820 913 Mass Mug+H2O (g) 1160 1180 Volume Liquid (ml) 340 260 Per Cent Volume Loss 23.5 Per Cent Profit Change 23.5 0-39
PLACE ME ON SOME PRINTING. MYSTERY ROD PLACE ME ON SOME PRINTING. WHAT DO YOU OBSERVE? WHAT DO YOU THINK THE ROD IS DOING? 0-40
O-40
O-40
O-40
FIBER OPTIC FLASHLIGHT TURN ON THE FLASHLIGHT. WHAT DO YOU OBSERVE? HOW DOES THE LIGHT GET FROM THE FLASHLIGHT TO THE END OF THE FIBER OPTIC? 0-40A
O-40A
FIBER OPTIC CLOCK TURN ON THE LIGHT BULB? WHAT DO YOU OBSERVE? HOW IS THE CLOCK PRODUCING DIFFERENT COLOR LIGHT AT THE END OF THE FIBER RODS? O-40B
O-40B
That’s all folks!!!