Things that move fast have energy. This is due to their: velocity (how fast they are going) mass (how much they weigh) Wind is moving air. It may not seem like it weighs a lot, but think again. Make a windmill 80 meters in diameter, and you can do a little math to estimate the mass of air going through it. Assuming 30 km/hr average wind speed, it’s about 110,000 pounds of air per second blowing through the windmill blades. That’s a lot of air, and consequently a lot of energy.

Things that move fast have energy. This is due to their:

  • velocity (how fast they are going)
  • mass (how much they weigh)

Wind is moving air. It may not seem like it weighs a lot, but think again. Make a windmill 80 meters in diameter, and you can do a little math to estimate the mass of air going through it.

Assuming 30 km/hr average wind speed, it’s about 110,000 pounds of air per second blowing through the windmill blades. That’s a lot of air, and consequently a lot of energy.

Tags: physics science wind power energy