Basic Science JSS2 Second Term

WEEK NINE

THERMAL ENERGY I

Content

REFERENCE
Precious seed BASIC SCIENCE FOR JUNIOR SECONDARY SCHOOLS BOOK 2

TOPIC: THERMAL ENERGY I

Heat flow is the movement of heat (energy) from the interior of Earth to the surface.  The source of most heat comes from the cooling of the Earth’s core and the radioactive heat generation in the upper 20 to 40 km of the Earth’s crust.

Energy flows into your body from the surrounding air, from surrounding objects, and from the sun when you're outside, or even light bulbs when you're inside. Energy also flows out of your body into the surrounding air, into the surrounding objects, and even into outer space, most notably if you are outside on a clear night. Heat flow moves energy from a higher temperature to a lower temperature.    The bigger the difference in temperature between two objects, the faster heat flows between them.   When.... View More