Contents
Key Stage 2
Meaning
An electrical insulator is a material that does not allow electricity to flow through it easily.
- Singular Noun: Electrical insulator
- Plural Noun: Electrical insulator
- Verb: To electrically insulate
- Adjective: Electrical insulation
About Electrical Conductors
 |
 |
 |
| Brick is a good electrical insulator. | Fabric is a good electrical insulator. | Glass is a good electrical insulator. |
 |
 |
 |
| Plastic is a good electrical insulator. | Rock is a good electrical insulator. | Rubber is a good electrical insulator. |
Key Stage 3
Meaning
An electrical insulator is a material with a very high Resistance to the flow of electricity.
About Electrical Conductors
- Non-metal elements are usually good electrical insulators. Carbon in the form of graphite is an exception to this.
- Metal elements are poor electrical insulators.
- To determine if an object is a good electrical insulator the object can be added to a circuit. If a current flows then it is not a good insulator.
- To compare the effectiveness of different insulators an ammeter can be added to the circuit. The higher the current the worse the object is at insulating.