3. MECHANIC Mechanical wave is a wave propagation
requires a medium in which the energies
AL WAVE for the purpose of propagation of a wave
process.
ON THE
ROPE
WATER
SURFACE
SEISMIC
TENSION
ACOUSTIC
INFRASONIC
SOUND
ULTRASONIC
4. ELECTROMA Electromagnetic waves are a form
GNETIC of energy, usually produced by
WAVE electrons that had been vibrating.
RADIO
MICRO
INFRARED
RAY
ULTRAVIOLET
RAY
X RAY
SINAR LASER
SINAR GAMA
VISIBLE
LIGHT
5. Microwave is wave with a super high
frequency (SHF). It’s a radio wave with
the highest frequency, more than 3Ghz
up 300Ghz. The wavelength is between
7.8 x 10-4 mm (7800 Å) or 1mm until 1m.
If a microwave is absorbed by
something, then it will show the effect
of the heat on it
6. The Wavelength
Frequency Area
Microwave with a wavelength
between 1 millimeter to 1 meter. Or
has frequency between 300 MHz (0.3
GHz) up to 300GHz.
Microwave
7. e Inventor of Microwave
Recognized by some people as the father of
modern physics, James Clerk Maxwell was a very
influential figure in the field of electricity,
thermodynamics, photography, nuclear energy, and
others. Invention of the electromagnetic spectrum
that affect the development of television, radio, the
microwave, and help in the development of radio and
infrared. Equations on electromagnetic field is very
important for the theory of special relativity, by
Albert Einstein. He also produced the first color
photograph. His work really marks advances of the
work of another great scientist Isaac Newton, and
help to inform the science behind many of the
technological developments of modern times.
8. The Occurrence of
Microwave
If the microwave absorbed by an
object, it will appear warming
effect on the object. If the food
absorb the microwave radiation,
then the food becomes hot in a very
short time interval. This process is
used in a microwave oven to cook
food quickly and economically.
9. 1. Warming.
2. Telecommunications
3.Radar and navigation
For are certainly uses to take advantage
We those whofamiliar microwaves to a
Radar also love with the name of
detect an object. certainly dailywithto
of hotspots that weAccordance life
microwave oven are use in the familiar
its the food. Microwave oven use those andin
with name And alsodetection
heat WiFi. radio for microwave
who
fond of using bluetooth to transfer
ranging, radar utilizing the wave
the frequency of about 2.45 GHz
reflection from mobileobject for
files between the phones or
mobile phone with a computer
detection.
10.
11. Microwave Oven
Concep
t Radiation Wave
a.
Microwave oven use 2.5 GHz of
frequency of the radio waves to heat
the food. The wave propagate by
radiation.
b. Dielectric Heating
The phenomenon where radio waves
heat the dielectric material
12. How A Microwave System Work?
Magnetron that located in
the microwave oven emits Reflected to the microwave's
microwaves in a microwave wall that made from metal
oven. And forwarded to the and absorbed by food
stirrer molecules
As the electromagnetic If the molecule exposed the
waves, the microwaves that microwaves, the microwave
propagate bring enough energy will be absorbed by
energy to heat the molecule the molecule so the food
in the foods. could be mature enough in a
short time
13. The Question Example
How much the frequency and
wavelength of the microwaves?
The frequency is 3GHz until 300GHz,
while the wavelength is 1mm until
1m
14. Conclusion
Microwave is one of the example of the
spectrum of electromagnetic waves, which have
the wavelength 1m-1 mm with the frequency
3GHz until 300GHz. Widely used in warming,
communication systems and radar systems.
Where one of the example is the microwave
oven.
15. The Bibliography
• http://dhidik.wordpress.com/2009/05/17/mengenal-
permanfaatan-gelombang-mikro/
• www.wikipedia.com
• http://brigittalala.wordpress.com/pesan-dan-kesan-
mengikuti-pree-test-fisika/gelombang-elektromagnetik/
• www.gurumuda.com
• http://taufihasbifisika.blogspot.com/2010/07/spektrum-
gelombang-elektromagnetik.html
• Kanginan, Marthen.2002.Fisika Untuk SMA Kelas
X.Jakarta:Penerbit Erlangga.
• http://mudrikalaydrus.wordpress.com
• www.engineeringtown.com
• http://www.pustakasekolah.com/spektrum-gelombang-
elektromagnetik.html
• http://www.indonology.com/tag/sejarah-penemuan-
gelombang-mikro
• Kamajaya;Suardhana Linggih.1988.Fisika Berdasarkan
Kurikulum 1984.Bandung:Ganeca Exact.
