Energy III - JSS1 Basic science Past Questions and Answers - page 1

Understanding energy transformations helps society develop more efficient technologies, reduce energy waste, and address environmental challenges. For example, it enables the design of energy-efficient appliances, transportation systems, and renewable energy sources, ultimately leading to a more sustainable future.

When you charge your smartphone, electrical energy from the charger is transformed into chemical energy stored in the phone's battery. Later, when you use the phone, the chemical energy is transformed back into electrical energy to power the device.

The conservation of energy is crucial because it ensures that energy is neither created nor destroyed during transformations, only converted from one form to another. This principle underpins the functioning of countless natural processes and human-made technologies, guiding efficient energy use and sustainability efforts.