Basics of Gravity
What is gravity?
A force that pulls objects towards each other.
What happens when gravity acts on an object in Earth?
The object is pulled toward the center/core of the Earth.
How does the mass of an object affect the gravitational force it experiences?
The greater the mass of an object, the stronger the gravitational force it experiences.
How does the Sun’s gravity affect the planets?
The Sun’s gravity pulls planets and keeps them in orbit.
This was a planet, but is no longer considerd a planet.
Pluto
Who discovered gravity?
Sir Issac Newton
Why do objects fall to the ground when dropped?
Objects fall because gravtity pulls them downwards.
Does a heavier object fall faster than a lighter object? Explain.
No, in the absence of air resistance, all objects fall at the same rate regardless of weight.
Why do the planets orbit the Sun instead of flying off into space?
Planets orbit the Sun because the Sun’s gravity pulls them inward while their motion tries to move them forward.
This planet is also referred to as the 3rd rock from the sun.
What force keeps us on the ground?
What is gravity.
How does gravity affect the motion of planets?
Gravity causes planets to move in curved paths (orbits) around the Sun.
Is gravity more or less on the moon when commpared to Earth?
Less gravity
What would happen if there was no gravity in the solar system?
Without gravity, planets and moons would drift away into space.
Humans have sent a rover to this planet.
Mars
Does gravity only exsist on Earth?
No, it is found throughout the universe.
What role does gravity play in the tides on Earth?
Gravity from the Moon and Sun causes ocean tides by pulling water toward them.
A bowling ball have the same mass on Earth and the moon? T/F?
True
How does gravity keep the Moon orbiting around Earth?
Gravity pulls the Moon toward Earth, keeping it in orbit.
Which planet is the coldest in temperature.
Uranus.
How does gravity effect our solar system?
It keeps planets,moons and stars in their orbits in space.
How does gravity influence the atmosphere around a planet?
Gravity holds the atmosphere close to the planet, preventing it from drifting into space.
Which planet has the strongest gravitational pull and mass?
Jupiter
Which planet has the weakest amount of gravity?
Mercury
How many planets have rings?
4.