Internal Heat Source

Question 1

Earth was formed about how many years ago?

Answer 1

4.6 Billion Years

Question 2

What are the sources of earth’s internal heat?

Answer 2

3 could be divided into:

1. Primordial heat of the planet remains from its early stage.
2. Heat from decay of radioactive elements.
3. Frictional Heating.

1. Gravitaional Pressure
2. Dense core material in the center of the planet

Question 3

The earth was formed from the process of ________, wherein gasses and dust of cloud was attracted b ygravitational energy.

Also created earth’s molten core which traps heat.

Answer 3

Process of Accretion

Primordial Heat of the planet remains from its early stage

Question 4

Which type of Earth’s Internal Heat Source is being described?

The spontaneous breakdown of an atomic nucleus releases energy matter.

Answer 4

Heat from the decay of radioactice elements

Question 5

Which type of Earth’s Internal Heat Source is being described?

It is the heat energy released from the friction that occurred between the outer core and the mantle.

Answer 5

Frictional Heating

The more descent into Earth’s interior, the amount of pressure increases.

Question 6

Which type of Earth’s Internal Heat Source is being described?

It was when the earth formed from the process of accreation.

Answer 6

Primordial heat of the planet remains from its early stage.