4.5.6 Being efficient
How efficient can we be? In this page you will inquire into the physics concept of efficiency, and explore some real-life examples of efficient and inefficient machines. Inquiry questions Disciplinary concepts If you (or your carers) have ever bought a new electrical appliance, such as a refrigerator or heater, you might find that there is a tag on the device that looks like this one. What does it mean? Many...