Nama :
Aisyah Nurrohmah
NPM :
10211482
Kelas :
1 EA 26
Solar energy is the resultof reactions that take
place within the sun. The reaction are in the nuclei, or central parts of
atoms. Because these reaction are in atomic nuclei, they called nuclear reacttions.
The solar energy that falls on the United States
in 1 minutes is enough to supply the energy need of the entire country for one
one day.
Man has made very little direct use of the
enormous amount of solar energy that reaches the earth. He has used solar
energy inderectly, however, for many thousands of years. When fuel is burned,
solar energy stored in plants is being used. Windmills used for grinding grain
and for pumping water are driven by wind that results from infrared solar
energy.
Scientists are trying to find ways of using solar
energy inexpensively and on a large scale. They are trying to find an
inexpensive method of making electric current from solar energy for use in
regions where generating electric current is expensive. They are experimenting
with ways of using solar energy to supply heat and hot water to homes less
expensively that can be done at present. Air conditioners and refrigerators
also may some day be run bay solar energy.
Electricity can be produced directly from
sunlight, without using a collector. The device that does this is called a
photelectric cell.
Photoelectric cells are made of materials that
produce an electric current when light sines on them. If sunlight us used, that
cell is called a solar cell. Many solar cells are connected to make solar
battery.
Solar batteries are extremely useful in supplying
electric current for spacecrafts or on flat plates along the outside of the
crafts. When the sun shines of the solar batteries, they generate an electric
current. This current is used to charge the storage batteries inside the
spacecrafts.
MULTIPLE CHOICE !!!
1. The text us about
A. the direct current of
solar energy
B. electricity from solar
energy
C. the way to extract
solar energy
D. the
uses of solar energy
E. the total amount of the
sun's energy
2.
The
main information of paragraph 3 is....
A. man has made plants to
store energy
B. solar energy that reaches
the earth is enormous
C. solar
energy has been used indirectly since a long time ago
D. wind that results from
infrared solar energy is used to drive windmills
E. only a small amount of
solar energy reaching the earth has been used directly
3. The following statements
are true, except.....
A. The flow of energy from
the sun never stops
B. solar energy is the
result of reactions that take place within the sun
C. Some day air
conditioners and refrigrators will be powered by solar energy
D. Electricity can be
produced directly from sunlight without using a collector
E. Advanced
technology is not needed to make effective use of solar energy
4. Photoelectric cell can
be used to generate....directly without using any collector
A. Sunlight
B. Electricity
C. solar cell
D. electric
current
E. solar battery
5. Which of the following
is the word used in the text which means "flow of electricity through a
wire"?
A. Atomic nuclei
B. Current
C. Supply
D. Collector
E. Battery
ESSAY !!!
1. What understanding of solar
energy ?
Solar energy is the resultof reactions
that take place within the sun
2. what is
the use of windmills ?
Windmills used for grinding
grain and for pumping water are driven by wind that results from infrared solar
energy.
3. the scientists found
a way to use solar energy,
the energy is useful for ? supply heat and hot water
for less expensive homes that can be done at
this time
4. what
you know about cell photelectric
? Electricity can be produced
directly from sunlight, without using a collector. The device that does this is
called a photelectric cell.
5. made of whether
the
photoelectric
cell ? Photoelectric cells are made of
materials that produce an electric current when light sines on them.
TRUE
OR FALSE !!!
1.
T – F The solar energy that falls on the
United States in 1 minutes is enough
to supply the energy need of the
entire country for one one day.
2.
T
– F Solar batteries are
very useful in supplying water flow to spacecrafts.
3. T – F When the sun shines of the solar batteries,
they generate an electric current.
4.
T
– F Reaction in the core, or the center of the sun.
5. T – F Many solar
cells are connected to the solar battery.
