Class practical: Using the hand as a detector to compare the absorption of infra-red radiation.
Class practical: Shows the properties of infra-red radiation.
Class practical: Comparing the infra-red radiation from a dull black and a shiny surface.
Class practical: A simple comparison of the infra-red radiation from two Bunsen flames.
Demonstration: This experiment shows that electromagnetic radiation in the infrared region is emitted from warm objects such...
Class practical: Simple observations on transmitting and absorbing radiation.
Conduction is the way in which energy is transferred (through heating by contact) from a hot body to a cooler one (or from the...
You pop a muffin in the microwave. You wrap your cold hands around a steaming mug of soup.
Radiation is quite different from both convection and conduction. Consider the case of warming by the Sun on a bright summer's...
Henri Becquerel discovered radioactivity in 1896. Fortunately, he kept a detailed diary of his experiments. This shows that...
Our new set of videos gives teachers and coaches of physics a preview of the training we offer ahead of this term's live support sessions.