quarta-feira, 11 de abril de 2012

Physics Facts


Check out these fun physics facts for kids. Learn about a wide range of cool topics such as gravity, electricity, light, sound and much more. Enjoy the world of science with our amazing physics facts.
  • Because of differences in gravity, a 100kg (220 pound) person would only weigh 38kg (84 pounds) on Mars. More gravity facts.
  • Electric eels can stun both predators and prey with electric shocks of around 500 volts. More electricity facts.
  • Energy from food is usually measured in joules or calories. More energy facts.
  • Light from the Earth takes just 1.255 seconds to reach the Moon. More light facts.
  • Sound travels at a speed of around 767 miles per hour (1,230 kilometres per hour). More sound facts.
  • When traveling at 80 kilometres per hour (50 miles per hour), cars use around half of their fuel just to overcome wind resistance.
  • Water can work against gravity, moving up narrow tubes in a process called capillary action.
  • A magnifying glass uses the properties of a convex shaped lens to magnify an image, making it easier to see.
  • A scientist who studies physics is known as a physicist.
  • Uranus is the only planet in our solar system that rolls on its side like a barrel, while Venus is the only planet that spins in the opposite direction to Earth.
  • The fastest land animal in the world is the Cheetah, clocking a max speed of around 113 km per hour (70 mph).
  • 1921 Nobel Prize in Physics was won by Albert Einstein for his work in the field of theoretical physics.

    Source: Science Kids