Factors that affect the Earth's shape
A force in which it tries to pull two objects toward each other
Gravity
Who is the Greek philosopher that used a pole's shadow and a well to figure out the size off the Earth?
Erastosthenes
What is an oblate spheroid?
This term describes the Earth's shape, which is slightly flattened at the poles and bulging at the equator.
The Earth is a perfect sphere.
False. The Earth is an oblate spheroid, meaning it is slightly flattened at the poles and bulges at the equator.
How many, " Laws of Motion," are there?
Three
It is the the measurement of how tightly material is packed together
Density
This Greek Philosopher invented the Pythagorean Theorem
Pythagoras
What is the Earth's diameter?
The difference in this measurement at the equator compared to the poles is approximately 43 kilometers.
The Earth's equatorial diameter is larger than its polar diameter.
True. The Earth's equatorial diameter is about 43 kilometers larger than its polar diameter due to its shape.
Who wrote the, " Laws of Motion?"
What is the imaginary line that goes through the center of the earth?
Equator
He is the most well known teacher of Aristotle, he had no self records of his thoughts. Says that," Care of the soul is the most important human obligation."
Socrates
Who is Eratosthenes?
This ancient Greek philosopher calculated the Earth's circumference using the angles of the sun’s rays at different locations.
The shape of the Earth was first accurately described by the Greek philosopher Eratosthenes in the 3rd century BCE.
True. Eratosthenes estimated the Earth's circumference with remarkable accuracy using the angles of the sun's rays at different locations.
What does the, "Third Law of Motion," state?
For every action, there is an equal and opposite reaction.
What LANDFORMS and WATERFORMS chance the Earth's shape?
Mountains and Ocean Trenches
His point was that varying stars become detectable with increased movement towards the northern or southern regions, a phenomenon that can only occur on a globe-shaped Earth.
Aristotle
What is the equatorial bulge?
The Earth's equatorial bulge is primarily due to its rotation. This phenomenon causes a variation in gravity experienced at different latitudes, affecting objects’ apparent weight.
The Earth's shape is primarily caused by the gravitational forces of the Moon.
This is false. While the Moon's gravitational forces do cause tides and influence Earth's shape slightly, the Earth's oblate spheroid shape is mainly due to its rotation, which causes it to bulge at the equator.
How can the, "Second Law of Motion," be shown as an equation?
F equals ma
What trait of the sea is IRREGULARLY SHAPED?
Sea Level
Who is Jean-Baptiste Joseph Delambre?
This French scientist, known for his work in geodesy, confirmed the Earth's shape as an oblate spheroid through measurements taken in polar and equatorial regions in the 18th century.
The variation in gravitational force across the Earth's surface due to its shape affects the apparent weight of objects depending on their location.
True. The Earth's oblate spheroid shape causes variations in gravitational force, making objects weigh slightly more at the poles and slightly less at the equator.
What theory expanded our knowledge about the Three Laws of Motion, and made scientists question everything they knew?
Theory of Relativity