CIE IGCSE Physics: Electric Charges notes

The file contains all the information on electric charges you need for the 2013 CIE IGCSE Physics exam according to the 2013 syllabus. Please don't forget to rate!

HideShow resource information
  • Created by: Varshini
  • Created on: 13-03-13 10:35
Preview of CIE IGCSE Physics: Electric Charges notes

First 210 words of the document:

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 keep the handkerchief next to small pieces of paper,
the small pieces of paper gets attracted to the plastic rod.
Now, the plastic rod has more
negative charges than positive
charges so the plastic rod is
negatively charged overall. So
when you keep the rod near
When you rub the plastic rod with small pieces of paper, the
Both the paper and the rod have the handkerchief, negative negative charges of the rod
positive and negative charges. charges on the handkerchief move gets attracted to the positive
into the plastic rod. in the paper so all the positive
electrons in the paper move
onto one side of the paper
while all the negative electrons
move to the other end of the
paper.
EXPERIMENT 2: THE GOLD LEAF EXPERIMENT
The gold leaf electroscope is used to detect charges.
1

Other pages in this set

Page 2

Preview of page 2

Here's a taster:

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 the leaves stay the same.…read more

Page 3

Preview of page 3

Here's a taster:

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 atom; electrons are negatively
charged and are located in the shells around the nucleus orbiting around it.
All atoms are neutral, but they can become charged by becoming
an ion (gain or lose electrons).…read more

Page 4

Preview of page 4

Here's a taster:

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 charges, the charges identical charges, the charges
field lines point away from get attracted to each other. repel from each other.…read more

Page 5

Preview of page 5

Here's a taster:

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 electrical conductors when they are
melted (in the form of liquid) or in an aqueous solution
but not when solid.…read more

Page 6

Preview of page 6

Here's a taster:

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 free to move around
carrying charges as shown in the
diagram on the left, but in an
insulator, they do not have free
electrons.…read more

Comments

No comments have yet been made

Similar Physics resources:

See all Physics resources »See all resources »