science test 1 Flashcards
1
Q
transferred
A
moved from one place to another
2
Q
mechanical energy
A
the percentage of work input that is turned into useful work output
3
Q
economic efficiency
A
the ability to do something well or achieve a desired output without wasting energy, effort or materials
4
Q
lost energy
A
energy that has escaped from a system
5
Q
ex. of lost energy
A
group project where someone doesn’t do their part of the work
6
Q
automation
A
the replacement of human workers by technology
7
Q
ex. of automation
A
self checkout
8
Q
customer service
A
help provided so that customers can use a physical or social system efficiently
9
Q
transformed
A
changed from one form to another
10
Q
bike efficiency
A
- oil change
- store indoors
- pump tires
- tighten brakes
