Explain how the evaporation of a liquid causes the temperature of the remaining liquid to decrease.
(Explain within the lesson)
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All answers ▸a )John heats up 2kg of water from 20 degrees c to 80 degrees c. How much energy input did this require? b )When John weighs the water at the end, he has less than he started with. Why might this be? c) What hazards are in this experiment?
How to use fleming's left hand rule.
Which are the forms of heat you know. Explain them briefly including an example
A bowling ball is thrown into the alley, having velocity of 3 ms^-1 at the start of the bowling alley. It decelerates at a constant rate, before hitting the skittles at 2 ms^-1 after 4 s A) calculate the acceleration of the ball.