Demonstration may include, but not be limited to,
- a gear turning a shaft
- a chain hoist raising a load
- the use of a hydraulic jack to lift a car
- the charging of a cell phone battery.
Process/Skill Questions:
- What is the force being acted upon when a crane lifts a beam?
- What is the force being acted upon when using a fire hose to put out a fire?
- What is the force being acted upon when a motor turns a conveyor belt in a supermarket checkout?