Physics 30
PH30-CO1
Investigate the nature of mechanical energy and efficiency in mechanical systems in relation to the law of conservation of energy.
SI
Indicators for this outcome
| (a) | Recognize work as the transfer of energy that takes place when a force acts over a displacement. (K) |
| (b) | Identify the conditions required for positive, negative and zero mechanical work and their relation to the angle between the applied force and displacement. (K) |
| (c) | Discuss how common usage of the terms work, energy and power differ from their operational definitions in physics. (K) |
| (d) | Identify the properties (e.g., boundaries, inputs and outputs) of a system with respect to total mechanical energy. (STSE, K) |
| (e) | Explain the law of conservation of energy in terms of isolated and non-isolated systems and conservation of mechanical energy. (STSE, K) |
| (f) | Solve problems related to kinetic, potential and total mechanical energy using relevant equations. E.g. $W=Fd \cosθ$,$W=\ΔE$,$E_k={mv ↖ {→2}}/2$,$E_p=mg ↖ {→}h$, and $TME=E_k+E_p$. (K, S) |
| (b) | Design and perform experiments and/or simulations, including collecting, analyzing and interpreting data, to determine the kinetic energy involved in elastic and inelastic interactions (e.g., curling stones, billiard balls, bouncing ball, seatbelts and automobile collisions). (STSE, S) |
| (c) | Discuss the challenges in modeling conservation of energy in real-life situations. (STSE) |
| (d) | Investigate the efficiency of energy transformations in various technologies with reference to useful work, friction and the production heat, sound and light. (K, STSE) |
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