basic facts
what is gravity
Gravity is the force that pulls objects toward each other.
why is gravity weaker on the moon
The Moon has less mass than Earth, so its gravity is weaker.
how does gravity effect falling speed
Gravity causes objects to speed up as they fall.
what would happen if gravity suddenly disappeared for one minute
Objects and people would float, and Earth’s atmosphere could begin drifting away.
who discovered gravity
Isaac Newton helped explain gravity after observing how objects fall to Earth.
how does gravity effect astronauts in space
Astronauts feel weightless because they are constantly falling around Earth in orbit.
why do heavier planets have stronger gravity
More mass creates a stronger gravitational pull.
could humans live on a planet with twice earth's gravity
It would be difficult because moving and carrying objects would require much more strength.
why do objects fall to the ground
Objects fall because Earth’s gravity pulls them downward.
what would happen if there was no gravity
People and objects would float away, and planets would leave their orbits.
what is the relationship between gravity and mass
Objects with more mass have stronger gravity.
what sport would change the most without gravity
Basketball would change greatly because players could float and jump extremely high.
how does gravity keep us on earth
Gravity holds people, water, and air close to Earth’s surface.
how does gravity keep galaxies together
Gravity pulls stars and planets together inside galaxies.
how does gravity effect jumping height
Lower gravity allows people to jump higher.
can gravity effect time
Yes. Strong gravity can slow down time slightly.