Eh-7 The Loadstone
Aim
To demonstrate a naturally occurring magnet ; the loadstone
Apparatus
- Loadstone
- Compass
- Overhead projector
Description
It is instructive that students see a sample of Loadstone (magnetic iron ore). The weak magnetic field is displayed by its effect on a compass needle on the overhead projector. Its strength may also be compared to a modern magnet by comparing its ability to attract small metal pieces.