4. WHAT IS GRAVETATIONAL-
In physics, gravitation is the force that pulls
two masses toward each other. Believe it or
not, every single particle of matter in the
universe exerts gravitation on every other
particle.The terms gravitation and gravity are
often used interchangeably for the attraction
between everything with energy or mass.
5. WHAT IT IS CALLED AS-
What is called gravitational?
Gravity, also called gravitation, is a force that
exists among all material objects in the
universe. For any two objects or particles
having nonzero mass, the force of gravity
tends to attract them toward each other.
Gravity operates on objects of all sizes, from
subatomic particles to clusters of galaxies.
6. WHY IT IS CALLED AS
GRAVETATION-
Our word gravity and its more precise
derivative gravitation come from the Latin
word gravitas, from gravis (heavy), which in
turn comes from a still more ancient root
word thought to have existed because of
numerous cognates in related languages.
7. TYPES OF IT-
The gravitational force is that which attracts
any two objects with mass.We call this force
attractive because it always tries to pull the
masses together, but it never pushes them
apart. In fact, every object, including we (a
human body), is pulling on every other object
in this entire universe!
8. USE OF THE GARVETATION-
1. Track Earth's water and ice.
polar bear
Of course we have to begin with this one. Gravity is not the
same all over the planet. Locations with more mass (a big
mountain, for example) have stronger gravitational pull. So
if we monitor gravitational changes over time, we can see
where mass is on the move. On Earth, that moving mass is
largely water, both in its liquid and icy forms. GRACE and its
successor, GRACE-FO, provide a fresh map of Earth's
gravity field every 30 days. Comparing these maps enables
us to track the rise in sea level and the changes in polar ice
and major water reservoirs across the planet.
9. CONTINOUS-
2. Provide energy.
falls
From old-fashioned watermills to modern
hydroelectric plants, putting something in the
way of falling water is a time-honored way to
turn gravitational energy into mechanical or
electrical energy.Also, when we harness the
wind, we indirectly harness gravitational as well
as solar energy since both the Sun's heat and the
Earth's gravity contribute to the atmosphere's
motion.
10. CONTINUE
Give a boost to spacecraft.
new horizons
Virtually all space missions beyond Mars orVenus depend
on "gravity assists" to add speed and change direction. For
example, the New Horizons spacecraft, which flew by Pluto
and its moons in 2015 and is now on its way to a Kuiper Belt
object a billion miles beyond, flew by Jupiter at just the
right distance and angle so that Jupiter's gravity pulled the
spacecraft toward the planet but didn't capture it.The extra
momentum the spacecraft gained in this maneuver shaved
about three years off its travel time to Pluto.Voyager 1
famously used gravity assists to visit all four giant planets.
Cassini repeatedly uses gravity assists atTitan to enable it
to tour the Saturn system without using much chemical
propulsion.
13. IMPORTANCE OF GRAVATATION-
Gravity is what holds the planets in orbit
around the sun and what keeps the moon in
orbit around Earth.The gravitational pull of
the moon pulls the seas towards it, causing
the ocean tides. Gravity creates stars and
planets by pulling together the material from
which they are made.
