A student investigates the magnetic properties of three metal bars, X, Y, and Z. She tests each bar by bringing first the North (N) pole and then the South (S) pole of a bar magnet near to one end of the bar. Her observations are shown in the table below.
| Bar | Effect of N pole | Effect of S pole |
|---|---|---|
| X | Attraction | Attraction |
| Y | Repulsion | Attraction |
| Z | No effect | No effect |
Identify which bar (X, Y, or Z) corresponds to each of the following properties:
Describe an electrical method to magnetise a bar of unmagnetised steel.
In another experiment, a positively charged glass rod is suspended horizontally by a nylon thread so that it can rotate freely in a horizontal plane. The student brings a negatively charged plastic rod close to one end of the suspended glass rod.
Describe and explain what happens to the suspended glass rod as the negatively charged rod is brought close to it.
169 exam-style questions on CIE IGCSE Physics Simple phenomena of magnetism, covering Simple phenomena of magnetism. Each one has a worked solution and a mark scheme showing where the marks go.