Energy Sources Flashcards
(6 cards)
1
Q
Advantages of solar energy
A
No noise
Available in all locations
No greenhouse gasses produced
2
Q
Disadvantages of solar power
A
Dependent on amount of light
Requires a large area for panels
3
Q
Advantages of geothermal energy
A
Can be used all day
Requires small amount of space
Little to no noise
4
Q
Disadvantages of geothermal energy
A
Not available in all locations
Releases some greenhouse gasses
Possible pollution of ground water
5
Q
explain how convection current is formed in a container
A
- water near heater is heated
- heated water expands
- density of heated water decreases
- warm water rises
- cooler water sinks
- is a continuous process
6
Q
why would an empty container heat more than a container of water
A
- particles move quicker in gasses
- convection current is faster in gasses
- mass of air in empty container is less than mass of water in full container
- specific heat capacity of air is less than of water
