energy mindmap Flashcards
1
Q
what is the law of conservation of energy
A
energy can not be created or destroyed but only transferred from one store to another
2
Q
name the 8 energy stores:
A
magnetic, nuclear, electrostatic, chemical, kinetic, gravitational potential, internal(thermal), elastic potential
3
Q
name the 4 energy transfers:
A
work done(mechanical), waves(sound, light), heating, electric current
4
Q
name some chemical store examples:
A
food, fuel and batteries
5
Q
What’s the equation for kinetic energy?
A
kinetic energy=1/2mv^2
6
Q
What’s the equation for gravitational potential energy?
A
gpe=mgh
7
Q
What’s the internal store a reflection of?
A
a substance’s temperature and state of matter
8
Q
what’s the equation for work done?
A
w=force x distance
9
Q
what is the unit for energy?
A
joules
