Edexcel Physics Unit 1 17th May 2012
Physics exam discussion - share revision tips in preparation for GCSE, A Level and other physics exams and discuss how they went afterwards.
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Re: Edexcel Physics Unit 1 17th May 2012Since the lift starts at 0ms_1, it has to accelerate to start moving. Since it is moving upwards, this acceleration is positive. Once it reaches it's speed, the acceleration goes to 0 as it is moving at constant velocity. When it's about to reach the desired floor, it has to decelerate. This acceleration is negative. Once it has hit 0ms^-1, the stops decelerating and remains at rest.
Hope this helps =] -
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Re: Edexcel Physics Unit 1 17th May 2012I don't remember logic gates at all. You doing Edexcel?(Original post by LegendX)
In what chapter of the book d they mention logic gates? -
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Re: Edexcel Physics Unit 1 17th May 2012(Original post by Zues)
Since the lift starts at 0ms_1, it has to accelerate to start moving. Since it is moving upwards, this acceleration is positive. Once it reaches it's speed, the acceleration goes to 0 as it is moving at constant velocity. When it's about to reach the desired floor, it has to decelerate. This acceleration is negative. Once it has hit 0ms^-1, the stops decelerating and remains at rest.
Hope this helps =]
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Re: Edexcel Physics Unit 1 17th May 2012Oh light gates. They come up in mechanics. Usually for experiments as they are more accurate since people can have different reaction times so using a stopwatch can be inaccurate.(Original post by LegendX)
Light gates even
I'm gonna go to bed so good luck everyone =] -
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Re: Edexcel Physics Unit 1 17th May 2012Yes, got 98/120 in jan, will try to do better this time.(Original post by LegendX)
Raheem ur retaking this exam? -
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Re: Edexcel Physics Unit 1 17th May 2012Yes i think you're correct(Original post by zulfarhan92)
given that weight is 638 newton
isnt the equation:
W= Tsin 40
T= W divide sin40
right?
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Re: Edexcel Physics Unit 1 17th May 2012basically all that turbulent flow does to a moving object is slow it down.(Original post by zulfarhan92)
as i revised the past year questions
i realised they kept making questions on the application of eddies due to turbulent flow
can anybody list down the effects of eddies on a moving object?
thank you =) -
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Re: Edexcel Physics Unit 1 17th May 2012mine starts in 2 and a half hours calm down its gonna be good if u freak out there is a posibillity of forgetting stuff you already know goodluck(Original post by youlostme)
my exam is in a couple of hours...im freaking out T_T
goodluck everyone
