Efficiency
0.0(0)
Studied by 1 person
View linked note
Call Kai
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Knowt PlayCard Sorting
1/9
Earn XP
Description and Tags
Last updated 8:49 PM on 9/16/22
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai |
|---|
No analytics yet
Send a link to your students to track their progress
10 Terms
1
New cards
Efficiency
useful output energy transfer / total input energy transfer
2
New cards
power output/ power input
efficiency = useful________ / total________.
3
New cards
thermal energy store
wasted energy is usually transferred into the________.
4
New cards
100% efficient
no device is________.
5
New cards
electric heaters
the only devices that are 100% efficient are________.
6
New cards
insulating them, lubricating them or making them more streamlined
you can improve the efficiency by________.
7
New cards
transfer energy
useful devices are only useful because they________ from one store to another.
8
New cards
more efficient
the less energy that is wasted, the________ the device is said to be.
9
New cards
energy transfers
most________ involve some waste energy
10
New cards
electrostatic energy store
electrical heaters are 100% efficient as all the energy in the ________ is transferred to 'useful' thermal energy store.
