Energy Efficiency
This item is included in the following series/curriculum: The Shedding Light on Energy series
- Grade Level: Junior High (7-9)
- Subjects: Physics, Biology, Chemistry
- Produced By: Liacos Educational Media
- Year: 2014
- Country: Australia
- Language: English
- Running Time: 30m
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We introduce students to the concept of efficiency, which is a measure of how much useful energy you get out of something compared to the amount of energy that you put into it. We answer a bunch of questions including:
- How much light energy do we get out of light globes compared to the amount of electrical energy that goes into them? Hint: it's not much; they should be called heat globes!
- How much kinetic energy do we get out of cars compared to the amount of chemical energy that we put into them? Hint: it's a bit more, but not that much more!
- And how do our arched feet make us the long-distance running champions of the animal world?
This video is the most energy-efficient way of learning everything that you need to know about energy efficiency!
This product includes... *
- Support Notes
- Question Sheet
- Answer Sheet