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IGCSE Physics: Electric Charges
Varshini 11C



ELECTRIC CHARGES




1. DESCRIBE SIMPLE EXPERIMENTS TO SHOW THE PRODUCTION AND DETECTION OF ELECTROSTATIC CHARGES

EXPERIMENT 1

When you keep a plastic rod next to small pieces of paper, nothing happens but when you rub a
handkerchief and a plastic rod together, and then…

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IGCSE Physics: Electric Charges
Varshini 11C



A)WHEN A CHARGED ROD IS BROUGHT CLOSE BUT DOES NOT TOUCH
When a charged rod is brought close but does not touch the electroscope, the opposite charge to the
charge of the rod moves to the top of the cap but the charge on…

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IGCSE Physics: Electric Charges
Varshini 11C


2. STATE THAT THERE ARE POSITIVE AND NEGATIVE CHARGES

There are two types of charges: positive and negative. All atoms of all the elements have the same
number of protons and electrons.
Protons are positively charged and are located in the nucleus of an…

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IGCSE Physics: Electric Charges
Varshini 11C


6. STATE THE DIRECTION OF LINES OF FORCE AND DESCRIBE SIMPLE FIELD PATTERNS, INCLUDING THE FIELD AROUND A POINT CHARGE
AND THE FIELD BETWEEN TWO PARALLEL PLATES*




Between two parallel plates Between point charges with Between point charges with
with opposite charges, the opposite…

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IGCSE Physics: Electric Charges
Varshini 11C




All metals are electrical conductors because they have free electrons moving
around, which can carry charges. For example, copper wires are used in
electrical cables because they are very good conductors of electricity.


Ionic compounds (compounds made or a metal and a
non-metal) are…

Page 6

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IGCSE Physics: Electric Charges
Varshini 11C


8. GIVE AN ACCOUNT OF CHARGING BY INDUCTION*

When a neutral sphere metal




9. RECALL AND USE THE SIMPLE ELECTRON MODEL TO DISTINGUISH BETWEEN CONDUCTORS AND INSULATORS*

In a conductor (most commonly
metals), they have electrons
(known as `the sea of electrons')
which are…

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