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mhmmm physics!
for my dear friend puja, and all of you others =D
puja_nandi@hotmail.com, mini_misha@hotmail.com, cherry_starshine@hotmail.com, naz_33@hotmail.com
write the formula that links charge, current and time.
In conduction, why do the free electrons in a good conductor of heat the piece of metal quickly?
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because they have more atoms |
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because theres many free electrons and when heated it vibrates rapidly and transfers the rest of the free electrons quickly |
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because the free electrons expand causing an increase in distance and transfers the rest of the free electrons quickly |
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good conductors pass heat quickly because it is a property of theirs. |
whats the formulla for convection..(yes thers a fomumal) *hint* look at the book.
| density = mass / volume (by me) |
| what the hell? there's a formula!?...I can't find it (by Puja) |
| dnt kno (by Malkinder) |
Apart from burning fossil fuels, what is other way to generate electricity?
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power station |
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national grid |
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solar energy |
what is the energy flow diagram for the power station?
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chemical --> heat --> kinectic --> wind --> electricity |
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electricity--> heat --> kinectic --> wind |
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chemical --> heat --> kinectic --> electricity |
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electricity--> kinectic --> heat --> chemical |
write how hydroelectirc energy produces electricity
| cnt b bothered (by me) |
| the water from rain is stored in a dam. the water then turns a turbine which then generates electricity for national grid. (by Puja) |
| have we covered this?????? (by Malkinder) |
| water needs to all from a height to create hydroelectric energy.water then has potential energy and it makes the turbines movw,as the turbines move they move the generator and electricity is generated. (by Anon) |
| kinetic--->heat--->eletric (by Diana) |
| The water moves turbines which moves a dynamo which makes electricity (by Anon) |
| by the energy of waves (by Sonia) |
| due to tidal waves (by Anon) |
| pe stored in the dam. when the water flows through a tube it drives a generator which produces electricity (by Anon) |
Name the TWO ways in which electricty can be produced in solar energy.
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solar panels and |
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directy and indirectly |
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national grid |
yay! write another formuala for force, mass and acceleration
| force = mass x acceleration (by me) |
| Acceleration= force x mass (by Puja) |
| :S:S:S:S:S:S:S:S:S:S:S:S:S:S:S:S::S:S:S:S::S:S:S:S:S:S:S: (by Malkinder) |
| force=mass *acceleration,mass=weight/tome taken and acceleration=length/time square (by Anon) |
| F=mxa (by Anon) |
| F=ma (by Anon) |
| force=mass x acceleration (by Diana) |
| Acceleration = force/mass (by Anon) |
| F=ma (by Sonia) |
| force= mass* acceleration (by Anon) |
| f=ma (by Anon) |
In convection, where in the current is it least dense?
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at the top |
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at the bottom |
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in the middle really |
Few..and finally how do you feel about this test?
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Haha easy peasy lemon squeasy |
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I think i'll just pass on this one... |
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I SO need to revise this..im totally worried |
Few..Finally how did you find this test?
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Haha easy peasy lemon squeasy |
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I think i'll just pass on this one... |
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I SO need to revise this..im totally worried |
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I knew my stuff but not straight out of my head |
Honestly, its not for me but for you..Did you look in the textbook or anything to help you?
