The program introduces electric current and voltage and measures these in series and parallel circuits. An experiment to measure resistance is demonstrated and results are shown graphically. Resistance is introduced and calculated from the gradient of V-I graphs. Ohm's Law is discussed and the V-I graph for a light bulb is plotted. Resistance is shown to depend on the type of metal, the length of a wire, the thickness of a wire and on the temperature,...

This text's individual entries introduce, explain and contextualise the key topics within classical social theory. Definitions, summaries and key words are developed throughout with careful cross-referencing allowing students to move effortlessly between core ideas and themes.

Outlining the history of photography and explaining the body of theory which has built up around its use, this book guides the reader through the genres of documentary, portraiture, landscape, still life, art and global photography.