Key Stage 3 (KS3) Physics Test 2025 – 400 Free Practice Questions to Pass the Exam

Reducing wasted energy in machines such as drills can be effectively achieved by improving insulation and efficiency. This is because energy is often lost in the form of heat due to friction and inefficient energy transfer within the mechanical components. By enhancing the efficiency of these components, such as using better lubricants or more precise engineering to minimize friction, less energy is wasted. Improved insulation can also prevent energy loss to the environment, ensuring that more of the input energy is effectively used for the intended work.

Furthermore, when machines operate more efficiently, they require less energy input to achieve the same output, which not only saves energy but can also lead to a longer lifespan for the machine and reduced operational costs. Using high-quality materials and designs that minimize energy loss are central to achieving these improvements in insulation and efficiency.