"Strength" can have many meanings, so let us take a closer look at what is meant by the strength of a material. We will look at a very easy experiment that provides lots of information about the ...

To investigate, describe and recall how the strength of the magnetic field depends on the current ... The main variables in a science experiment are the independent variable, the dependent ...

A second experiment can be carried out to investigate how the strength of the electromagnet depends on the number of turns in the coil. As the number of turns increases the number of paper clips ...