Which of the following energy conversions take place in a battery-operated flashlight?
a) electricalà mechanicalà light
b) chemicalà mechanicalà light
c) chemicalàelectricalà light
d) thermalàelectricalà light
‘fossil fuel’ is regarded as an energy resource which is…….
a) non-renewable
b) renewable
c) generating
d) producing
If you are
using biomass as a source of energy you might be heating with…….
a) coal
b) natural gas
c) petroleum
d) wood
Of the following choices, which best describes or defines electrical energy?
a) moving charges
b) moving water
c) electric meter
d) light source
Which of the following has nothing to do with hydropower?
a) burning
b) gravity
c) sun
d) water cycle
