IntoScience Aims:
In the first lesson, we looked at forms of energy.
During this lesson we also covered the different ways energy can transfer from one object to another. These different ways are conduction, convection and radiation.
Conduction is the passing of energy from one solid object to another. This occurs when you touch a hot object. The object passes its energy directly into your hand. Convection is similar to conduction, however it doesn't occur in solid objects. Convection can only occur in gases and liquids. When one part of a glass of water is heated and the others aren't, the hot water will rise to the top because its increase in energy made it less dense than the rest of the water. These 'convection currents' can also occur in gases. Radiation travels as waves rather than as particles and can therefor travel through a vacuum. Examples of radiation are ultraviolet and infrared. We feel the latter as heat. Lesson Summary:
0 Comments
Leave a Reply. |
Views this weeks Weekly Blog Progress Report. Just press 'View on 'Scribd' and you will be able to read the document
Your browser does not support viewing this document. Click here to download the document.
|