Earth Science Q1 MQE

Where does the Earth bulge that makes it an imperfect sphere?

Answer explanation

The Earth's shape is an oblate spheroid which means a ball-like shape that is distorted towards the *side.

Where was Eratosthenes when he observed the shadow of the stick?

Answer explanation

Eratosthenes was appointed to the Library at Alexandria.

What is the unit of measure based on the size of a large sports arena with tiered spectator seats?

What date does Eratosthenes observe the shadows?

Answer explanation

The summer solstice is the longest day of the year for the northern hemisphere. It is also the day that the sun is directly overhead at noon at the tropic of cancer (23 deg latitude). The tropic of cancer is the northern most latitude that can experience a directly overhead sun

What are the reference lines that passes through both poles?

Answer explanation

Noon is defined as the point in the sky when the sun is on the meridian. The meridian is the line between the north and south poles. Longitude refers to the measure east or west of the prime meridian.

How many thousands of kilometers is the Earth's radius?

What is the last name of the scientist who was able to determine the Gravitational Constant?

Which is the direction of the Gravitational Force on a mass?

• towards the other mass

• away from the other mass

• away from the mass

• towards the mass

How would doubling the distance affect the gravitational force between 2 masses? The force would...

• double the original force

• half of the original force

• a fourth of the original force

• four times the original force