Definition of physics

1
Definition of physics
the science of matter and energy and their
interactions
2
Types of Energy Heat Light Sound Electrical
Chemical Nuclear
3
Definition of electronics
the branch of physics that deals with the
emission and effects of electrons and with the
use of electronic devices
4
There are two types of electricity Static
Electricity. ( this is a build up of electrical
charge on insulators) Current electricity.
Easily the most important and useful form. This
type flows along conductors. Moving currents can
produce heat, light magnetic fields.
5
Conductors
FIND OUT ABOUT
insulators
electrons
nucleus
neutrons
protons
6
conductors insulators
list some examples of each
7
(No Transcript)
8
(No Transcript)
9
Conductors insulators
water
pure water
rubber
copper
plastics
silver
wood
gold
glass
Teflon
nickel
mercury steel
perspex
silk
iron
wool
aluminium
10
How does metallic conduction work
11
1.5V Cell
Cells are cylinders which contain complex
mixtures of chemicals. The chemical reactions
inside effectively separate and - charges and
produce an electrical current
12
A battery is a group of cells. Here two 1.5V
cells are in series and produce 3V
13
Please copy all this
14
Ammeter
Voltmeter
Copy these into a two column table
LEARN
Diode
Electronic symbols
15
Electronic symbols
LEARN
Copy these into a two column table
battery
Capacitor
earth
electrolytic
16
(No Transcript)
17
Copy these into a two column table
LEARN
globe
LDR
LED
18
switch
resistor
transistors
19
variable resistor
20
(No Transcript)