Q1/The energy transformation by using electric motor;chemical E transformed to heat E then to kinetic E.2/the energy transformation by using load;electrical E transforned to kinetic E then to GPE.3/the energy transformation by using a dynamo:GPE transformed tokinetic E then to light. v=10.09, I=1.12a,t=2.06s, m=200g inkg=0.2kg,g=10N/kg, h=1m. Q/describe the energy conversions and the efficiency of the transformation process in this experiment?

Your question is very unclear. It would be god if you used paragraphing and not clutch everything together; it is really confusing.

What are these values? What do they represent? Are the same values to be used in every question?

For instance, what is v? Potential difference of velocity?

I hope that you know your formulae well.









You didn't give any information about the energy lost or other relevant energy issues. Without this, you cannot find the efficiency.