We've been studying Work, Energy and Power and to introduce the topic I always say
What is the unit of power?
...to which I invariably get a bunch of crap responses like "Volt", "Amp", "Newton"
So I say again
Watt is the unit of power
More wrong answers. I always string this gag out for about 3 minutes as I find that this is the optimum amount of time to get a really pained groan out of them when I tell them that WATT is indeed the unit of power and that it wasn't a question, it was a statement.
So in the next lesson, I decided to compound this gag by saying
Watt is a thousandth of a kilowatt
Watt is the name given to the power developed in a circuit by a current of one ampere flowing through a potential difference of one volt
and
Watt is equal to 1/746 horsepower in SI units
So far I have managed to get pained groans most times, and after 2 weeks of cracking the same gag over and over again in different guises I thought that maybe it was time to move on. Today I spent the day looking for a person named Hu, so today's gag went something like this...
Hu designed a rocket propelled chair in the sixteenth century on which he planned to go to Heaven
Unfortunately, it seems I was beaten to the punch on this gag...
