Flashcards
P2- TOPIC 1 : STATIC AND CURRENT ELECTRICITY
Flashcards do conjunto (29)
- 1ATOMS HAVE WHATPROTONS
NEUTRONS
ELECTRONS - 2WHAT IS THE RELATIVE CHARGE OF PROTON NEUTRON ELECTRONPROTON = +1
NEUTRON = 0
ELECTRON = -1 - 3WHAT IS THE RELATIVE MASS OF THESEPROTON= 1
NEUTRON =1
ELECTRON = NEGLIGIBLE - 4INSULATORS CAN BE CHARGED BY WHAT ?FRICTION
- 5WHAT CAN SOME MATERIALS DO BETTER THAN OTHERSHOLD ELECTRONS - SOME HOLD EASILY OTHERS LOOSE EASILY
- 6WHAT DO METALS DO IN TERMS OF ELECTRONSTHEY CONDUCT
- 7LIKE CHARGES ….REPEL
- 8CAN PROTONS BE TRANSFERRED EXPLAIN YOUR ANSWERNO THEY CANNOT ….. BECAUSE THEY ARE FIXED IN THE NUCLEUS OF ATOMS
- 9WHAT HAPPENS WHEN A MATERIAL GAINS ELECTRONSIT BECOMES NEGATIVLEY CHARGED
- 10IF A MATERIAL LOOSES ELECTRONS …..IT IS LEFT WITH AN EQUAL POSITIVE CHARGE
- 11EXPLAIN EARTHINGWHEN ELECTRONS MOVE FROM YOU TO GET TO THE EARTCH
- 12HOW CAN YOU AVOID DANGER WHEN DEALING WITH STATIC ELECTRICITYPROVIDE THE ELECTRICITY WITH A PATH TO THE GROUND … THIS STOPS ANY SPARKS FROM CAUSING A FIRE
- 13WHAT MUST ALL AIRCRAFTS DO ?CONNECT THE PLANE TO THE GROUND WHEN REFUELING.
THIS STOPS ANY SPARKS FROM CAUSING A FIRE - 14EXPLAIN WHY STATIC IS USEFUL FOR PAINTING AND CROP SPRAYINGALLOW THAT PRODUCT TO STICK TO THE MATERIAL YOU ARE SPRAYING
- 15HOW DOES THIS WORK WITH PAINTING-- CONNECT THE PAINT SPRAY NOZZEL TO A POSITIVE TERMINAL
-THE PAINT DROPLETS THEN PICK UP THESE POSITIVE ELECTRONS
-THE POSITIVLY CHARGED PAINT DROPLETS REPEL EACH OTHER
-GIVE THE OBJECT A NEGATIVE CHARGE AND THE CHARGE DROPLETS ARE ATTRACTED TO THIS - 16EXPLAIN AN ELECTRIC CURRENTTHE RATE OF FLOW OF CHARGE
- 17WHAT DOES THIS MEANHOW MUCH CHARGE FLOWS PER SECOND
- 18WHAT IS THE CURRENT IN METALSA FLOW OF ELECTRONS
- 19EXPLAIN ELECTRONS IN A CURRENTELECTRONS ARE FREE TO MOVE BUT NOT PROTONS THESE ARE' LOCKED AWAY' IN THE NUCLEUS…..
- 20*NEGATIVE CHARGES FLOW FROM ONE TERMINAL AND ARE ATTRACTED TOWARDS THE POSITIVE TERMINAL *:)
- 21WHAT DOES DC STAND FOR ?DIRECT CURRENT - FOLLOW ONE DIRECTION
- 22A.CALTERNATING CURRENT CHANGES DIRECTIONS
- 23CHARGE = CURRENT x TIMEFORMULA WILL BE IN EXAM
- 24THE ATOMIC NUMBER IS ______THE NUMBER OF PROTONS
- 25HOW MANY NEUTRONS ARE THERE THEN + EXPLAIN HOW TO WORK IT OUT27 - 13
(MASS NUMBER - NMBER OF PROTONS )
NUMBER OF NEUTRONS = 13 - 26IF THERE ARE 13 PROTONS HOW MANY ELECTRONS13
- 27WHAT ARE ROWS AND COLUMNS CALLED ?PERIODS
GROUPS
- 28PERIODS GO IN ORDER OF ATOMIC MASS AND ...GROUPS IN SIMILAR PROPERTIES
- 29DEFINE AN ISOTOPEATOMS OF AN ELEMENT WITH THE SAME NUMBER OF PROTONS BUT WITH DIFFERENT NUMBERS OF NEUTRONS
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- Descrição
- FlashCards sobre P2- TOPIC 1 : STATIC AND CURRENT ELECTRICITY, criado por mathilde_ndoye em 17-11-2014.
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- mathilde_ndoye
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