Understanding Structures and Mechanisms, System in action

3.1 identify various types of systems. ▹
3.2 identify the purpose, inputs, and outputs of various systems. ▹
3.4 compare, using examples, the scientific definition with the everyday use of the terms work, force, energy, and efficiency. ▹
3.5 understand and use the formula work = force × distance (W = F × d) to establish the relationship between work, force, and distance moved parallel to the force in simple systems. ▹
3.6 calculate the mechanical advantage (MA = force needed without a simple machine divided by force needed with a simple machine) of various mechanical systems. ▹
3.8 describe systems that have improved the productivity of various industries. ▹