energy efficiency
Efficient devices waste less energy. This topic is part of Energy within Science & Nature. This page currently draws on 4 supporting questions, with answers and bonus facts available below.
energy efficiency trivia questions
Energy efficiency means getting the same service while using what?
Answer: Less energy
Bonus fact: Efficient devices waste less energy.
Which light source is generally more energy-efficient than an incandescent bulb?
Answer: LED
Bonus fact: LEDs turn more electrical energy into visible light.
A higher-efficiency appliance generally converts more input energy into what?
Answer: Useful output
Bonus fact: Efficiency is useful output divided by total input.
How does energy conservation differ from energy efficiency?
Answer: Conservation reduces use; efficiency gets the same service with less energy
Bonus fact: Both can reduce total energy demand.