Qualification > Sciences

How did u guyz do in phys p1 ?

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sloe:
I can only remember choosing the ans which was on the top left of the graph (4 protons, 4 neutrons).

sabrina:

--- Quote from: sloe on May 20, 2010, 11:42:26 am ---I can only remember choosing the ans which was on the top left of the graph (4 protons, 4 neutrons).


--- End quote ---
and i remember chosing B

mr.incredible:
The lithium question was confusing but in the end i chose A :) .

What about the following questions:
1. The force extension graph where the spring constant was required
2. The force distance graph of the electric field where there was located a positive charge
3. The change of state of ice to water
4. The electric field question where there was a positive charge located in a circle
5. The uncertainty of the density of something :D

[Spy]:

--- Quote from: mr.incredible on May 20, 2010, 11:49:03 am ---The lithium question was confusing but in the end i chose A :) .

What about the following questions:
1. The force extension graph where the spring constant was required
2. The force distance graph of the electric field where there was located a positive charge
3. The change of state of ice to water
4. The electric field question where there was a positive charge located in a circle
5. The uncertainty of the density of something :D

--- End quote ---

0.2
constant straight line
decrease-increase
they say its 0 but i put C E * pie*r/2
0.6

mr.incredible:

--- Quote from: Spy on May 20, 2010, 11:51:35 am ---0.2
constant straight line
decrease-increase
they say its 0 but i put C E * pie*r/2
0.6

--- End quote ---

For the spring constant, I don't remember 0.2 as a choice !!
Why do the spacings decrease when ice becomes water ??
Are you sure about the uncertainty ? I chose 0.5.

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