Playing an instrument., Mechanical, Thermal, Sound, Electrical, Light, Using a flashlight., Mechanical, Thermal, Sound, Electrical, Light, Must be used in a circuit., Mechanical, Thermal, Sound, Electrical, Light, A heater., Mechanical, Thermal, Sound, Electrical, Light, Using a hammer., Mechanical, Thermal, Sound, Electrical, Light, Fire alarm., Mechanical, Thermal, Sound, Electrical, Light, Using a microphone., Mechanical, Thermal, Sound, Electrical, Light, Swinging a golf club., Mechanical, Thermal, Sound, Electrical, Light, Charging an ipad., Mechanical, Thermal, Sound, Electrical, Light, The light is able to turn on., Mechanical, Thermal, Sound, Electrical, Light

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