Energy Storage Flashcards
1
Q
What are the two type of energy stores we need to know
A
battery
kinetic energy pump
2
Q
What are batteries commonly made from
A
potassium hydroxide - alkaline bateries
3
Q
What are the + and - of rechargeable batteries
A
they last longer than single use
more expensive than single use
more economic
4
Q
What are the negatives of all batteries
A
contain harmful metals and chemicals that damage the environment
5
Q
How does a kinetic energy pump system work at night
A
excess energy from power stations so pumps water up the dam
6
Q
How does kinetic pump system work in the day
A
more energy required so dam opened and hydroelectric power harvested
