How smart are you -- physics
05-10-2005, 09:06
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#16
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Guest
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Re: how smart are you -- physics
10/10 - sorry 
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05-10-2005, 09:12
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#17
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10 yrs same company 😁
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Re: how smart are you -- physics
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Originally Posted by homealone
10/10 - sorry |
Why apologise?  You should be pleased.
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05-10-2005, 09:20
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#18
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Guest
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Re: how smart are you -- physics
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Originally Posted by Angua
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Originally Posted by homealone
10/10 - sorry |
Why apologise? You should be pleased. |
bof/nerd/swot - no one likes a smart ar$e
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05-10-2005, 09:27
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#19
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Inactive
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Re: how smart are you -- physics
7/10 for me. Some of them were guesses though.
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05-10-2005, 10:38
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#20
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Re: how smart are you -- physics
5/10 for me. this is one subject I hated with a passion at school
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05-10-2005, 10:42
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#21
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Re: how smart are you -- physics
10/10 - I actually did well at something 
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05-10-2005, 10:42
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#22
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cf.mega poser
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Re: how smart are you -- physics
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Originally Posted by makikomi
6/10 here. And if I recall correctly, newtons are a unit of mass, not weight - there is a difference, though I couldn't tell you what the difference is! |
IIRC mass is constant, weight isn't. Weight is amongst other things dependent on latitude. Something to do with the force of gravity being slightly different on different latitudes I believe. Mass does not 'suffer' this variation. I'm sure someone will correct me if I'm wrong.
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05-10-2005, 11:10
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#23
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Re: how smart are you -- physics
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Originally Posted by Paul M
8/10
I choose kg for the weight instead of Newtons (who the hell has heard of Newtons for weight ....) & I choose beta radiation for the smoke detector.
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kg is MASS, Newtons is weight, which is the same as force.
Think about it, you multiply a mass in kg by an acceleration in ms^-2, the unit of the weight isn't going to be in kg is it?
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05-10-2005, 11:11
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#24
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Re: how smart are you -- physics
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Originally Posted by danielf
IIRC mass is constant, weight isn't. Weight is amongst other things dependent on latitude. Something to do with the force of gravity being slightly different on different latitudes I believe. Mass does not 'suffer' this variation. I'm sure someone will correct me if I'm wrong.
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mass is resistance to translational acceleration, and is indeed constant.
weight is the gravitational force resulting on a mass...
i.e. if your mass is 100 Kg, you will weigh 1000N on earth but only about 166N on the moon.
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05-10-2005, 11:59
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#25
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Re: how smart are you -- physics
10/10 But what has wiring a plug got to do with physics?
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05-10-2005, 12:01
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#26
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Re: how smart are you -- physics
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Originally Posted by beardsley
10/10 But what has wiring a plug got to do with physics?
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Get it wrong and see physics in action i suppose
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05-10-2005, 12:01
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#27
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Re: how smart are you -- physics
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Originally Posted by beardsley
10/10 But what has wiring a plug got to do with physics?
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Potential energy, I'd have thought.
If you wire it wrong, the energy has the potential (or potential energy )to throw you across the room (kinetic energy, I believe).
Maybe I've just explained why I could only get a D 
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05-10-2005, 12:47
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#28
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Re: how smart are you -- physics
If you wire it wrong, the energy has the potential (or potential energy )to throw you across the room (kinetic energy, I believe).
funny you should say that!.....once tried to insert a plug ito a 4 way. the cover of the plug came off (screw holding it together was missing) and i touched live. sent me dancing round the room and burnt my hand. I always check them now.......lesson learned
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05-10-2005, 18:32
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#29
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10 yrs same company 😁
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Re: how smart are you -- physics
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Originally Posted by beardsley
10/10 But what has wiring a plug got to do with physics?
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It's for those of us who are clueless about physics but do know practical stuff (so we don't feel too dumb)
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06-10-2005, 08:55
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#30
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Re: how smart are you -- physics
9/10. Odd set of questions, really.
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i.e. if your mass is 100 Kg, you will weigh 1000N on earth but only about 166N on the moon.
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It's even better than that, if you want to lose weight, climb a mountain. Even without the exercise, gravity is measurably less up there.
Of course, what unscientific people mean by 'weight' is actually mass. Don't get me onto stress and strain...
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