Difference between revisions of "Speaker"
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==Key Stage 3== | ==Key Stage 3== | ||
===Meaning=== | ===Meaning=== | ||
| − | [[File:Speaker.png|right|300px|thumb| | + | [[File:Speaker.png|right|300px|thumb|A picture of a [[speaker]].]] |
A [[speaker]] is an electrical device that [[vibration|vibrates]] to produce a [[sound]]. | A [[speaker]] is an electrical device that [[vibration|vibrates]] to produce a [[sound]]. | ||
===About Speakers=== | ===About Speakers=== | ||
| − | : [[Speaker]]s use an | + | : [[Speaker]]s use an coil of wire and a [[Permanent Magnet|permanent magnet]] to [[vibration|vibrate]] a paper cone. |
| − | : When the [[current]] changes direction the paper cone moves. An [[Alternating Current|alternating current]] causes the cone in the [[speaker]] to vibrate]]. | + | : When the [[Electrical Current|current]] changes direction the paper cone moves. An [[Alternating Current|alternating current]] causes the cone in the [[speaker]] to [[Vibration|vibrate]]. |
| + | |||
| + | {| class="wikitable" | ||
| + | |- | ||
| + | |[[File:SpeakerDiagram.png|center|400px]] | ||
| + | |- | ||
| + | | style="height:20px; width:200px; text-align:center;" |A [[diagram]] of a [[speaker]]. | ||
| + | |} | ||
| + | |||
| + | ==Key Stage 4== | ||
| + | ===Meaning=== | ||
| + | [[File:Speaker.png|right|300px|thumb|A picture of a [[speaker]].]] | ||
| + | A [[speaker]] is an electrical device that uses the [[Motor Effect|motor effect]] to [[vibration|vibrate]] a diaphragm to produce a [[sound]]. | ||
| + | |||
| + | ===About Speakers=== | ||
| + | : [[Speaker]]s have a coil of [[wire]] and a [[Permanent Magnet|permanent magnet]] to use the [[Motor Effect|motor effect]] to [[vibration|vibrate]] a diaphragm attached to the coil of [[wire]]. | ||
| + | : When the [[Electrical Current|current]] changes direction the coil of [[wire]] moves. An [[Alternating Current|alternating current]] causes the coil in the [[speaker]] to [[Vibration|vibrate]] the diaphragm. | ||
| + | |||
| + | {| class="wikitable" | ||
| + | |- | ||
| + | |[[File:SpeakerDiagram.png|center|400px]] | ||
| + | |- | ||
| + | | style="height:20px; width:200px; text-align:center;" |A [[diagram]] of a [[speaker]]. | ||
| + | |} | ||
Latest revision as of 14:16, 5 March 2019
Contents
Key Stage 3
Meaning
A picture of a speaker.
A speaker is an electrical device that vibrates to produce a sound.
About Speakers
- Speakers use an coil of wire and a permanent magnet to vibrate a paper cone.
- When the current changes direction the paper cone moves. An alternating current causes the cone in the speaker to vibrate.
 |
| A diagram of a speaker. |
Key Stage 4
Meaning
A picture of a speaker.
A speaker is an electrical device that uses the motor effect to vibrate a diaphragm to produce a sound.
About Speakers
- Speakers have a coil of wire and a permanent magnet to use the motor effect to vibrate a diaphragm attached to the coil of wire.
- When the current changes direction the coil of wire moves. An alternating current causes the coil in the speaker to vibrate the diaphragm.
| |
| A diagram of a speaker. |