15 Questions
What is the fundamental force in the universe that causes every object to be attracted to every other object?
Gravitational force
What does gravity keep planets and moons in?
Orbit
What does the strength of the gravitational force between two objects depend on?
The mass of each object and the distance between the objects
What does an object's gravitational field point toward?
Its center of mass
What is the force of gravity in a region of space called?
Gravitational field
What determines an object's weight?
Mass
What does the strength of the gravitational force do as the distance between two objects increases?
Decreases
What does Newton's universal law of gravitation state?
Gravity is directly proportional to mass and inversely proportional to the square of the distance between the objects
What happens to the force of gravity as the distance between objects increases?
It decreases drastically
Why do planets, moons, and other objects orbit in elliptical paths?
Due to gravity
What impact does gravity have on the shapes of planets and stars?
It causes them to be roughly spherical
What happens to the acceleration due to gravity as the mass of an object increases?
It increases
What is the relationship between the strength of a gravitational field and the mass of an object?
Objects with small masses have weak gravitational fields, while those with large masses have strong gravitational fields
What causes planets to orbit the sun and moons to orbit planets?
The sun's strong gravitational field
Why do planets have gravity?
Because they have mass, and everything with mass has a gravitational field
Study Notes
Gravity in Our Solar System
- Acceleration due to gravity varies on each planet in the solar system
- On Earth, objects in free fall accelerate at approximately 9.8 m/s^2
- Newton's universal law of gravitation states that gravity is directly proportional to mass and inversely proportional to the square of the distance between the objects
- Objects with small masses have weak gravitational fields, while those with large masses have strong gravitational fields
- In the early solar system, objects collided frequently, forming fewer, more massive objects through the process of accretion
- The more massive object accelerates less in response to gravitational force
- The sun's strong gravitational field causes planets to orbit it, and moons to orbit planets
- Planets, moons, and other objects orbit in elliptical paths due to gravity
- Planets have gravity because they have mass, and everything with mass has a gravitational field
- The force of gravity decreases drastically with increasing distance between objects
- Gravity impacts the shapes of planets and stars, causing them to be roughly spherical
- Radial gravitational attraction pulls objects inward toward the center of mass, resulting in spherical shapes for planets and stars
Test your knowledge of gravity in our solar system with this quiz! Explore how acceleration due to gravity varies on different planets, the impact of mass on gravitational fields, and the role of gravity in shaping celestial bodies. Delve into Newton's law of gravitation and the gravitational forces that govern the movement of planets and moons in our solar system.
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