What is a machine?, A device that makes work easier or automates tasks by converting energy into motion or force. Can be simple (lever, pulley) or complex (car, elevator)., What is the main function of a machine?, To transform energy into motion or force to perform tasks., What is an engine/motor?, A machine that converts energy (chemical, electrical, or thermal) into mechanical movement., Name the main types of engines/motors., Internal combustion engines (fuel: gasoline, diesel), electric motors (electricity), and steam engines (steam from heated water)., What is the function of an engine/motor?, To convert energy into mechanical energy to create movement., Give an example of a simple machine., Lever, pulley, wheel and axle, inclined plane, screw, or wedge., Give an example of a complex machine., Car, elevator, washing machine, airplane., What is an internal combustion engine?, An engine that burns fuel inside a cylinder to produce movement. Example: car engines., What is an electric motor?, A motor that uses electricity to create mechanical movement. Example: fans, electric trains., What is a steam engine?, A motor that uses steam from boiling water to create mechanical movement. Example: old locomotives and factories..

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