ESS First Semester Exam

Front

What layer of the Earth is primarily responsible for heat transfer?

Back

The mantle is the layer of the Earth where the majority of heat transfer occurs.

Front

What are seismic waves?

Back

Seismic waves are vibrations that travel through Earth's layers, typically generated by earthquakes.

Front

What does it mean for an orbit to be eccentric?

Back

An eccentric orbit is one that deviates from being circular, indicating a more elongated path.

Front

How do you calculate the gravitational force between two masses?

Back

The gravitational force can be calculated using Newton's law of universal gravitation: F = G * (m1 * m2) / r^2, where G is the gravitational constant.

Front

If a planet is located 20 AU from the Sun, how long is its year?

Back

The planet's year would be approximately 89.4 Earth years.

Front

What is the definition of an astronomical unit (AU)?

Back

An astronomical unit (AU) is the average distance from the Earth to the Sun, approximately 93 million miles or 150 million kilometers.

Front

What is the difference between the inner core and outer core of the Earth?

Back

The inner core is solid and composed mainly of iron and nickel, while the outer core is liquid and also composed of iron and nickel.

Front

What are lithospheric waves?

Back

Lithospheric waves are seismic waves that travel through the Earth's lithosphere, which includes the crust and upper mantle.

Front

What is the significance of the mantle in Earth's geology?

Back

The mantle plays a crucial role in tectonic activity, including plate movements and volcanic activity.

Front

What is the formula for calculating gravitational force?

Back

F = G * (m1 * m2) / r^2, where F is the gravitational force, G is the gravitational constant, m1 and m2 are the masses, and r is the distance between their centers.