ELECTROSTATICS TAPE LAB TAPE LAB PT 1 MAKE

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ELECTROSTATICS - TAPE LAB

ELECTROSTATICS - TAPE LAB

TAPE LAB (PT. 1) • MAKE A TAPE “FLAG” • MAKE A TOP (T

TAPE LAB (PT. 1) • MAKE A TAPE “FLAG” • MAKE A TOP (T 1) AND BOTTOM (B 1) TAPE SANDWICH • MAKE ANOTHER PAIR OF TOP AND BOTTOM TAPES Directions (T 2 & B 2) 1. 2. 3. 4. Hang T 1 and B 1 off the end of the table. (see figure below) Bring T 2 near T 1, note what happens. Bring B 2 near T 1, note what happens. Rip off a strip of paper, bring it near T 1 & B 1, note what happens. Layer tapes like so… T 1 B 1

TAPE LAB (PT. 2) • REMOVE OLD FLAGS FROM THE TABLE • MAKE A

TAPE LAB (PT. 2) • REMOVE OLD FLAGS FROM THE TABLE • MAKE A TOP (T 1), MIDDLE (M 1), AND BOTTOM (B 1) TAPE SANDWICH • MAKE ANOTHER SET OF TOP, MIDDLE, AND BOTTOM TAPES (T 2, Directions 1. Hang T 1, M 1, and B 1 off the end of the table. (see figure M 2, & B 2) Layer tapes like so… below) 2. Bring T 2, M 2, and B 2 close to each, note what happens. 3. Bring a strip of paper close to each, note what happens. 4. Answer questions at the bottom with your group. M 1 T 1 B 1

a) PROTONS QUESTIONS b) NEUTRONS c) ELECTRONS d) PROTONS & ELECTRONS e) ALL f)

a) PROTONS QUESTIONS b) NEUTRONS c) ELECTRONS d) PROTONS & ELECTRONS e) ALL f) NONE Q 1: Which particles in the atom are charged? Q 2 : Electricity is due to the movement of which particle?

TAPE BEHAVIOR ATTRACT __________ CHARGES REPEL __________ CHARGES DO NOTHING __________

TAPE BEHAVIOR ATTRACT __________ CHARGES REPEL __________ CHARGES DO NOTHING __________

WHAT IS A CHARGE? • AN IMBALANCE OF POSITIVE AND NEGATIVE CHARGES E-EXCESS =

WHAT IS A CHARGE? • AN IMBALANCE OF POSITIVE AND NEGATIVE CHARGES E-EXCESS = E-DEFICIENCY = E- IN BALANCE =

DIFFERENT METHODS OF CHARGING 1. FRICTION a) RUBBING 2 OBJECTS TOGETHER. b) ELECTRONS MOVE

DIFFERENT METHODS OF CHARGING 1. FRICTION a) RUBBING 2 OBJECTS TOGETHER. b) ELECTRONS MOVE FROM ONE OBJECT TO ANOTHER c) OBJECTS GET OPPOSITE CHARGES 2. CONDUCTION a) TOUCHING A CHARGED OBJECT TO A NEUTRAL ONE. b) OBJECTS GET THE SAME CHARGE.

DIFFERENT METHODS OF CHARGING CONT… 3. POLARIZATION a) WHEN CHARGED IS BROUGHT CLOSE TO

DIFFERENT METHODS OF CHARGING CONT… 3. POLARIZATION a) WHEN CHARGED IS BROUGHT CLOSE TO (BUT NOT TOUCHING!) NEUTRAL. 4. GROUNDING a) **ADD TO NOTES** THE REMOVAL OF CHARGE FROM AN OBJECT

CHARGING BY FRICTION (DETAILS) • ONE OBJECT ALWAYS POSITIVE. • WHILE THE OTHER OBJECT

CHARGING BY FRICTION (DETAILS) • ONE OBJECT ALWAYS POSITIVE. • WHILE THE OTHER OBJECT ALWAYS NEGATIVE.

CHARGING BY CONDUCTION • NEED TWO CONDUCTORS • WHEN YOU GET ZAPPED BY A

CHARGING BY CONDUCTION • NEED TWO CONDUCTORS • WHEN YOU GET ZAPPED BY A DOORKNOB, THIS IS CALLED CHARGING BY LIGHTNING.

CHARGING BY POLARIZATION

CHARGING BY POLARIZATION

SCIENTIFIC NOTATION • + EXPONENT: LARGE # • - EXPONENT: SMALL # EX 1)

SCIENTIFIC NOTATION • + EXPONENT: LARGE # • - EXPONENT: SMALL # EX 1) 8. 5 X 106 * 9. 9 X 105 = _________ EX 2) 6. 85 X 105 * 2. 50 X 10 -6 = _________

CALCULATING CHARGE • THE UNIT OF CHARGE (Q) IS THE COULOMB. • FORMULA: •

CALCULATING CHARGE • THE UNIT OF CHARGE (Q) IS THE COULOMB. • FORMULA: • EX 3) AN OBJECT HAS 1 X 1021 ELECTRONS TAKEN AWAY FROM IT. WHAT IS THE CHARGE?

CALCULATING CHARGE • THE UNIT OF CHARGE (Q) IS THE COULOMB. • FORMULA: •

CALCULATING CHARGE • THE UNIT OF CHARGE (Q) IS THE COULOMB. • FORMULA: • EX 4) AN OBJECT HAS AN EXCESS OF 5 X 1020 ELECTRONS. WHAT IS THE CHARGE ON IT?

CONDUCTING SPHERES • TAKE THE MATH AVERAGE: EX 5) WHAT CHARGE RESULTS FROM THESE

CONDUCTING SPHERES • TAKE THE MATH AVERAGE: EX 5) WHAT CHARGE RESULTS FROM THESE SPHERES BEING TOUCHED? +3 C , -1 C +10 C , -12 C +6 C , -6 C 0 C , +8 C 0 C , 0 C

SHOCKING AND ELECTRIC FIELDS GETTING SHOCKED: • THERE WILL ONLY BE A SHOCK IF

SHOCKING AND ELECTRIC FIELDS GETTING SHOCKED: • THERE WILL ONLY BE A SHOCK IF THERE IS A DIFFERENCE IN CHARGE. ELECTRIC FIELDS: • EVERYTHING THAT HAS A CHARGE HAS AN ELECTRIC FIELD AROUND IT. ELECTRIC FIELD DIAGRAMS: • CHARGES ARE DRAWN OUT OF THE POSITIVE AND INTO THE

CURRENT BUT…ELECTRICITY DOESN’T FLOW THROUGH ALL OBJECTS EQUALLY! HOW DIFFICULT IT IS TO GET

CURRENT BUT…ELECTRICITY DOESN’T FLOW THROUGH ALL OBJECTS EQUALLY! HOW DIFFICULT IT IS TO GET ELECTRICITY TO FLOW THROUGH SOMETHING = ______________________________ • CONDUCTOR – • INSULATOR –

EXAMPLE • EXAMPLE: 9 V BATTERY • ON FINGER ON TONGUE

EXAMPLE • EXAMPLE: 9 V BATTERY • ON FINGER ON TONGUE

CAN YOUR CELL PHONE CAUSE A FIRE AT A GAS STATION? • YOUR ANSWERS:

CAN YOUR CELL PHONE CAUSE A FIRE AT A GAS STATION? • YOUR ANSWERS: _____ YES ______NO • REAL ANSWER:

HOW DOES LIGHTNING WORK? • ELECTRICITY LIKES TO JUMP INTO THINGS THAT ARE: 1.

HOW DOES LIGHTNING WORK? • ELECTRICITY LIKES TO JUMP INTO THINGS THAT ARE: 1. METALS (CONDUCTORS) 2. TALLEST POINT 3. POINTY SHAPE THAT’S WHY LIGHTNING RODS ARE PLACED ON THE HIGHEST POINT OF A BUILDING & GROUNDED.

BUT REALLY, HOW DOES LIGHTNING WORK? 1. CLOUD : CHARGED BY FRICTION (-) 3.

BUT REALLY, HOW DOES LIGHTNING WORK? 1. CLOUD : CHARGED BY FRICTION (-) 3. LIGHTNING BOLT: EVENING OUT THE CHARGE 2. EARTH’S SURFACE GETS POLARIZED

LIGHTNING SAFETY • HOW MANY PEOPLE DIE IN THE USA YEARLY FROM LIGHTNING STRIKES?

LIGHTNING SAFETY • HOW MANY PEOPLE DIE IN THE USA YEARLY FROM LIGHTNING STRIKES?

LOOK AT THE STATS. LIGHTNING'S NO JOKE.

LOOK AT THE STATS. LIGHTNING'S NO JOKE.

DON’T HIDE UNDER A TREE. . . • LIQUID WATER BECOMES SUPER-HEATED STEAM… •

DON’T HIDE UNDER A TREE. . . • LIQUID WATER BECOMES SUPER-HEATED STEAM… • TREE EXPLODES.

IT’S SAFE IN YOUR HOUSE. . . JUST • DON’T BECOME PART OF THE

IT’S SAFE IN YOUR HOUSE. . . JUST • DON’T BECOME PART OF THE HOUSE CIRCUIT… DON’T • USE A CORDED DEVICE • SHOWER/BATHE • STAY AWAY FROM WINDOWS AND DOORS

ALSO SAFE IN YOUR CAR… • NOT DUE TO THE RUBBER TIRES! • INSIDE

ALSO SAFE IN YOUR CAR… • NOT DUE TO THE RUBBER TIRES! • INSIDE A HOLLOW METAL SHELL, NO ELECTRICITY FLOWS. (FARADAY CAGE)