Old KS4 Science Curriculum - Science
Mission Objectives
Describe how a moving coil loudspeaker on headphones work
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Words and meanings to learn
DC motor
A class of rotary electrical motors that converts direct current electrical energy into mechanical energy.
rotation
The action of rotating about an axis or centre.
commutator
A rotary electrical switch in certain types of electric motors and electrical generators that periodically reverses the current direction between the rotor and the external circuit.
coil
The path along which something moves, lies, or points I'm coming from the opposite.
direction
The path along which something moves, lies, or points I'm coming from the opposite.
Expert film
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