to the image on the next slide.
about the problem
of climate change
and climate justice.
the solutions.
clean form of energy from the Sun,
the two wires
from the
solar cell
to the motor.
the shaft of the motor.
on a sunny day.
directly at the Sun.
You may need
to turn the propeller,
to start the motor spinning.
to reflect sunlight
onto the solar cell.
even when the solar cell itself is in the shade?
directly into electrical energy.
and changes it into kinetic energy.
of solar cells?
Solar cells do not release CO2 into the air.
Solar cells do not pollute the air, the ground or the water.
Solar cells convert sunlight directly into electrical current.
Solar cells do not use a generator or a turbine to make electricity.
Solar cells work as long as the Sun shines.
Sunlight is free.
onto the axle, as shown.
the wheel.
a hollow section
on the car frame.
on the axle
for a wheel.
two washers and the axle,
through a hole on the back
of the car frame.
onto the shaft
of the motor.
sided tape already
on the car frame.
SURE
the wheels
spin freely.
so that the two gears engage
without locking together.
or black (negative)
wire in the front,
if you want
front wheel drive.
to reflect additional sunlight
onto the car’s solar cell.
Does it increase its speed.
Make sure that the motor spins freely in the sunlight
when the car is
off the ground.
Find a fairly smooth sidewalk or playground
to see if the car will run.
Can you use the mylar square to make the car run even in the shade?
2. Does the front wheel spin in the sunlight when the car is off the ground? Check the motor’s connections to the solar cell. Make sure the front wheel is not rubbing against anything as it turns.Turn the shaft of the motor with your fingers to get it started.
3. Do the wheels spin freely? If not, did you forget to put on the small washers?Adjust the wheels so there is room for them to spin without rubbing on the frame of the car.
4. Check to see if the two gears engage without locking together TOO tightly. Be sure to leave some space between the pinion gear on the motor and the gear on the axle.
5. Be sure that the motor is aligned with the axle and that the pinion gear is perpendicular to the gear on the axle.
(a green house gas) into the air
well in cold weather
have moving parts
Renewables