Difference between revisions of "Wire"
| Line 18: | Line 18: | ||
===About Wires=== | ===About Wires=== | ||
| − | : '''Wires''' are used to connect electrical components together. | + | : '''Wires''' are used to connect [[Electrical Component|electrical components]] together. |
: Electricity flows through the metal in the '''wires'''. | : Electricity flows through the metal in the '''wires'''. | ||
| − | : A '''wire''' is usually covered in plastic for safety. The plastic is safe to touch, but if you can see the metal then it is dangerous and could electrocute you if you touched it. | + | : A '''wire''' is usually covered in [[Plastic (Material)|plastic]] for safety. The [[Plastic (Material)|plastic]] is safe to touch, but if you can see the metal then it is dangerous and could electrocute you if you touched it. |
: '''Wires''' come in many sizes. The thicker the wire the more electricity it carries and the more dangerous it is. | : '''Wires''' come in many sizes. The thicker the wire the more electricity it carries and the more dangerous it is. | ||
: The [[metal]] inside a '''wire''' is an [[Electrical Conductor|electrical conductor]] which means electricity can pass through it easily. | : The [[metal]] inside a '''wire''' is an [[Electrical Conductor|electrical conductor]] which means electricity can pass through it easily. | ||
: The [[plastic]] covering the '''wire''' is an [[Electrical Insulator|electrical insulator]] which means electricity does not pass through it very easily. | : The [[plastic]] covering the '''wire''' is an [[Electrical Insulator|electrical insulator]] which means electricity does not pass through it very easily. | ||
| + | |||
| + | ==Key Stage 3== | ||
| + | ===Meaning=== | ||
| + | A '''wire''' is a long, thin piece of [[metal]] that allows electricity through it. | ||
| + | |||
| + | ===About Wires=== | ||
| + | : '''Wires''' are used to connect [[Electrical Component|electrical components]] together. | ||
| + | : [[Electron]]s flow through the [[metal]] in the '''wires''' as an [[Electrical Current|electrical current]]. | ||
| + | : A '''wire''' is usually covered in an [[Electrical Insulator|insulator]] such as [[Plastic (Material)|plastic]]. This prevents [[Electrical Current|electrical current]] leaving the [[wire]] when it is touched by an [[Electrical Conductor|electrical conductor]]. This also prevents [[electrocution]]. | ||
| + | : The [[metal]] inside a '''wire''' is an [[Electrical Conductor|electrical conductor]] which means electricity can pass through it easily. | ||
| + | : The [[Plastic (Material)|plastic]] covering the '''wire''' is an [[Electrical Insulator|electrical insulator]] which means electricity does not pass through it very easily. | ||
| + | |||
| + | ==Key Stage 4== | ||
| + | ===Meaning=== | ||
| + | A '''wire''' is a long, thin piece of [[metal]] that allows electricity through it. | ||
| + | |||
| + | ===About Wires=== | ||
| + | : '''Wires''' are used to connect [[Electrical Component|electrical components]] together. | ||
| + | : [[Electron]]s flow through the [[metal]] in the '''wires''' as an [[Electrical Current|electrical current]]. | ||
| + | : A '''wire''' is usually covered in an [[Electrical Insulator|insulator]] such as [[Plastic (Material)|plastic]]. This prevents [[Electrical Current|electrical current]] leaving the [[circuit]] when the [[wire]]s are touched. This also prevents [[electrocution]]. | ||
| + | : [[Wire]]s are [[heated]] by an [[Electrical Current|electrical current]] passing through them. | ||
| + | : [[Wire]]s are designed to be a low [[Electrical Resistance|resistance]] in order to allow an [[Electrical Current|electrical current]] through them without losing [[energy]] too much [[energy]] by [[heating]] the [[wire]]s. | ||
Revision as of 10:50, 27 February 2019
Contents
Key Stage 1
Meaning
Wires are long pieces of metal covered in plastic.
About Wires
- Wires carry electricity which can hurt you.
- You should not touch a wire unless an adult says it is safe.
- If the plastic has come off a wire and you can see the metal you should tell an adult as soon as you can.
Key Stage 2
Meaning
A wire is a long piece of metal used to carry electricity. It is usually covered in plastic to prevent electrical shocks.
About Wires
- Wires are used to connect electrical components together.
- Electricity flows through the metal in the wires.
- A wire is usually covered in plastic for safety. The plastic is safe to touch, but if you can see the metal then it is dangerous and could electrocute you if you touched it.
- Wires come in many sizes. The thicker the wire the more electricity it carries and the more dangerous it is.
- The metal inside a wire is an electrical conductor which means electricity can pass through it easily.
- The plastic covering the wire is an electrical insulator which means electricity does not pass through it very easily.
Key Stage 3
Meaning
A wire is a long, thin piece of metal that allows electricity through it.
About Wires
- Wires are used to connect electrical components together.
- Electrons flow through the metal in the wires as an electrical current.
- A wire is usually covered in an insulator such as plastic. This prevents electrical current leaving the wire when it is touched by an electrical conductor. This also prevents electrocution.
- The metal inside a wire is an electrical conductor which means electricity can pass through it easily.
- The plastic covering the wire is an electrical insulator which means electricity does not pass through it very easily.
Key Stage 4
Meaning
A wire is a long, thin piece of metal that allows electricity through it.
About Wires
- Wires are used to connect electrical components together.
- Electrons flow through the metal in the wires as an electrical current.
- A wire is usually covered in an insulator such as plastic. This prevents electrical current leaving the circuit when the wires are touched. This also prevents electrocution.
- Wires are heated by an electrical current passing through them.
- Wires are designed to be a low resistance in order to allow an electrical current through them without losing energy too much energy by heating the wires.