Answer:
8, 8 W
Explanation:
The useful power of 1 Light Emitting Diode is

Total power required is 1.6 W
Number of Light Emitting Diodes would be

The number of Light Emitting Diodes is 8.
Power would be

The power that is required to run the Light Emitting Diodes is 8 W
Potential energy is what is stored to be used, but not used yet. If you are on a skateboard at the top of a hill, you have potential energy. As you start going down the hill, you have less and less potential energy and more kinetic energy.
This is also in the human body. Food is chemical energy. As your body breaks down the food, it is being turned into another form of energy, potential energy. Then when you go and run or do an activity, that potential energy is being used and it is being turned into kinetic energy.
Answer:
condensation, the process of changing from a gas to a liquid
The moon is the closest celestial body to the earth. If you are wanting the closest planet the Venus is technically closer some of the time, but Mars is a close second and is closer more often. The closest star is our own sun.