Educake Flashcards
1
Q
When an object is lifted up, its ___________ energy store increases.
A
gravitational potential
2
Q
The energy in a fuel is stored in its _____ and can be released during a chemical reaction.
A
chemical bonds
3
Q
A catapult uses stretched rubber to store ________ energy.
A
elastic potential
4
Q
Gravitational potential is a store of energy so it is measured in __________.
A
Joules
5
Q
What don’t conduct thermal energy well?
A
thermal insulators
6
Q
What is the equation for efficiency?
A
EFFICIENCY=(USEFUL ENERGY OUTPUT/TOTAL ENERGY UNIT)*100
