9702 · 5.1
Energy conservation
Ever wondered why a bouncing ball eventually stops? Or how a rollercoaster gains incredible speed? It all comes down to **energy conservation** – a fundamental principle in Physics that explains how energy transforms from one form to another without ever being lost or created. This pilot aligns with **Senpai Corner** AS notes (2025–2027) for topic **5.1**.
Need to know
What you need to know
- In physics, work (W) is the energy transferred to or from an object through the application of force (F) along a displacement (d) 𝑊 = 𝐹 × 𝑑.
- The SI units for work is in Joules.
- The principle of conservation of energy states that energy is neither created nor destroyed. But may transform from one type to another.
- E.g. work can be transformed to heat (friction!), electric to light.
- Not all energy transferred is useful. E.g. when transferring electric to light, some energy is wasted in the form of heat!.
Explanation
Energy conservation
- In physics, work (W) is the energy transferred to or from an object through the application of force (F) along a displacement (d) 𝑊 = 𝐹 × 𝑑.
- The SI units for work is in Joules.
- The principle of conservation of energy states that energy is neither created nor destroyed. But may transform from one type to another.
- E.g. work can be transformed to heat (friction!), electric to light.