Gravity force for Kids

July 18, 2017

Dwarf Planets

Learn interesting trivia and information about a wide range of science topics with our fun science
facts for kids.

Gravity Facts

Enjoy our range of interesting gravity facts that help explain how gravity relates to both life on Earth and other objects in our solar system. Learn about important concepts such as acceleration, mass, tides and orbits as well as some useful formulas, strange trivia and other fun information relating to the topic of gravity.

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  • Objects with mass are attracted to each other, this is known as gravity.
  • Gravity keeps Earth and the other planets in our solar system in orbit around the Sun. It also keeps the Moon in orbit around Earth.
  • Tides are caused by the rotation of the Earth and the gravitational effects of the Moon and Sun.
  • Acceleration of objects to due to the gravity on Earth is around 9.8 m/s2. If you ignore air resistance (drag) then the speed of an object falling to Earth increases by around 9.8 metres per second every second.
  • The force of gravity 100 kilometres (62 miles) above Earth is just 3% less than at the Earth’s surface.
  • The human body can handle increased g-forces as seen in activities such as dragster races, airplane acrobatics and space training. The highest known acceleration voluntarily experienced by a human is 46.2 g by g-force pioneer John Stapp.
  • While formula one racing drivers may feel around 5 g’s under heavy braking, they can experience over 100 g’s if a crash causes them to decelerate extremely quickly over a very short distance.
  • Some roller coasters have been known to include g-forces of around 4 to 6 g.
  • The higher something is, the greater its gravitational potential energy. Back in the Middle Ages, weapons called trebuchets were used to take advantage of this principle, using mechanical advantage and the gravitational potential energy of a counterweight to hurl rocks and other projectiles at or over walls. In modern times we use the gravitational potential of water to create hydroelectricity.
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