i always thought physics p6 is the easiest paper that i take, so i didnt do anything yesterday and decide to try some papers today..............and its haaaaard T_T can someone explain to me about pins at mirror, i don't understand it at all.............. i don't know where to put it and i don't even know what its function-_-
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physics p6....
- Thread starter Millatina
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every one good luck with p6
hope it will not be like p3
hope it will not be like p3
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- 52
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- 8
see its really easy
......i think u are doing 2011 oct/nov...pins are used to mark the incident ray and emergent ray....in the question there will be always given the incident and emergent ray where u have to place the pin....wat u need to do is simply put the P1,P2,P3 and P4 on the incident and emergent ray according to the question where the pins should be at-least 3cm away from each other....these pins function is to show the pathway of the incident and emergent ray
and if the question ask "how to ensure if the pins are positioned accurately" then u need to describe that all the pins will be in a same line when viewed through the glass block.....
- Messages
- 52
- Reaction score
- 9
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- 8
OMG...... did they let u in????
see its really easy
pins are used to mark the incident ray and emergent ray....in the question there will be always given the incident and emergent ray where u have to place the pin....wat u need to do is simply put the P1,P2,P3 and P4 on the incident and emergent ray according to the question where the pins should be at-least 3cm away from each other....these pins function is to show the pathway of the incident and emergent ray
and if the question ask "how to ensure if the pins are positioned accurately" then u need to describe that all the pins will be in a same line when viewed through the glass block.....
that's it? lol it's not as hard as i thought
yes, but i was so panicked that i didnt really do anything until my friend entered the class, he was late for 25 minutes... it eased me to know that theres someone worse than me wkwk
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its ok......once for my pre board i was late for half an hour for my chem p-3 and i ended up getting 76 on 80
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which was terrible!!!!! urgh!
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wow u seem to be a genius
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umm answer your inbox..
- Messages
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go n check that"amazing notes for physic paper 6
can you give me the link?? pleasego n check that"amazing notes for physic paper 6
- Messages
- 52
- Reaction score
- 9
- Points
- 8
- Messages
- 58
- Reaction score
- 30
- Points
- 28
here r some notes.......
And you'll do fine for paper 6 learn all the 5 topics experiments precautions.
Physics laboratory safety precautions / rules:
* Live wires should not be touched.
* Hot Objects should not be touched with barren hands instead of that gloves should be used the most common process is heating of water in thermodynamic experiments.
* Circuit connections should be checked and approved by the teacher and then only the circuit should be switched ON.
* While changing components of the circuit the power should be switched so that one should not experience electric shocks.
* Safety spectacles, gloves and other safety components should be used while handling experiments.
* While handling a mercury thermometer one should take of the mercury spills.
* No other laboratory instruments should be touched or handled which is not involved in the course of experiments.
micrometer : can measure the thickness of any small thing to 0.01 mm
vernier : can measure the inner and outer wall of anything to 1.05mm
Control Variables
Precautions
Units ( eg.. voltage is V etc. ) cause the units hold 1 mark of the question
Statements & justification
The rest are calculations and measurements
To produce more accurate or reliable results:
• Repeat experiment, to calculate average reading.
• Avoiding parallax error, look perpendicular to the ruler.
• If accuracy in measurement was asked, check for zero error.
Improvements that could be done to the experiment (temp. cooling):
• Same initial temperature.
• Same volume of water.
• Same shape of beaker.
• Beakers of same surface.
• Same room temperature.
• Stirring the water in the beakers.
• Same time intervals.
• Same surface area. (Unless given different containers)
• Adding water or cooling effect at regular intervals.
Heat loss could be reduced by:
• Insulation of beaker.
• Covering beaker with a lid.
For 2 values to be directly proportional,
• The graph of the values must be a straight line from the origin.
• As value 1 increase, value 2 increases.
For images produced from lenses on screens, precautions taken:
• Use of a darkened room for the experiment.
• Avoiding parallax error in measurement, and look perpendicular to the ruler.
• Object and lens at the same height from bench.
• Object/lens/screen is perpendicular to the bench.
To draw an image created from lens:
• Inverted from the original object.
• Sides are multiplied by the magnification.
*If values have difference by 0.1 or 0.01, that is the limit of experimental accuracy, so answers are about the same.
For spring extension experiment, variables that should be constant in the experiment:
• Number of coils.
• Diameter of spring.
• Selection of loads.
• Mass of spring.
micrometer : can measure the thickness of any small thing to 0.01 mm
vernier : can measure the inner and outer wall of anything to 1.05mm
Control Variables
Precautions
Units ( eg.. voltage is V etc. ) cause the units hold 1 mark of the question
Statements & justification
The rest are calculations and measurements
To produce more accurate or reliable results:
• Repeat experiment, to calculate average reading.
• Avoiding parallax error, look perpendicular to the ruler.
• If accuracy in measurement was asked, check for zero error.
Improvements that could be done to the experiment (temp. cooling):
• Same initial temperature.
• Same volume of water.
• Same shape of beaker.
• Beakers of same surface.
• Same room temperature.
• Stirring the water in the beakers.
• Same time intervals.
• Same surface area. (Unless given different containers)
• Adding water or cooling effect at regular intervals.
Heat loss could be reduced by:
• Insulation of beaker.
• Covering beaker with a lid.
For 2 values to be directly proportional,
• The graph of the values must be a straight line from the origin.
• As value 1 increase, value 2 increases.
For images produced from lenses on screens, precautions taken:
• Use of a darkened room for the experiment.
• Avoiding parallax error in measurement, and look perpendicular to the ruler.
• Object and lens at the same height from bench.
• Object/lens/screen is perpendicular to the bench.
To draw an image created from lens:
• Inverted from the original object.
• Sides are multiplied by the magnification.
*If values have difference by 0.1 or 0.01, that is the limit of experimental accuracy, so answers are about the same.
For spring extension experiment, variables that should be constant in the experiment:
• Number of coils.
• Diameter of spring.
• Selection of loads.
• Mass of spring.
for improving the accuracy of the results (for experiments):
Minimizing heating effect of a current:
• Lower current
• Increase voltage
• Add a lamp
• Increase resistance of a resistor
To increase accuracy of ray diagrams
• View bases of pins since pins may not be vertical
• Keep pins further apart
• Use more pins
• Avoid parallax, explain action and reason
• Repeats and average
Adjustments made to experiments will be made to increase accuracy
Improvement made to experiments about heating effect and insulation
• Lids
• Repeats
• Stirring
• Record max. Temperature
• Add insulation
• Keep constant room temperature
• Avoid heat loss
How to check if a rule is vertical:
• Protractor
• Use of set square
• Plumb line
• Spirit Level
Precautions taken in experiments about formation of images by a lens
• Use a darkened area
• Meter ruler on bench or clamped
• Object and lens same height on bench
• Mark on lens holder to show center of lens
• Take more readings
• Avoid parallax error, explain action and reason
• Lens\screen perpendicular to bench
Variables in experiments about springs and stretching effect:
• Number of coils
• Length of spring
• Diameter\thickness of spring or wire
• Range of loads
• Length of wire
• Coil spring
Sources of error in calculating circumference by string method:
• Parallax
• Diagonal winding
• Thickness of string
Improvement made to calculating circumference by string method
• Avoid parallax error
• Repeats and average
• Thinner string
• Parallel winding of springs
It's not the BEST list in the world, but hopefully it will help...
Control Variables
Precautions
Units ( eg.. voltage is V etc. ) cause the units hold 1 mark of the question
And you'll do fine for paper 6 learn all the 5 topics experiments precautions.
Physics laboratory safety precautions / rules:
* Live wires should not be touched.
* Hot Objects should not be touched with barren hands instead of that gloves should be used the most common process is heating of water in thermodynamic experiments.
* Circuit connections should be checked and approved by the teacher and then only the circuit should be switched ON.
* While changing components of the circuit the power should be switched so that one should not experience electric shocks.
* Safety spectacles, gloves and other safety components should be used while handling experiments.
* While handling a mercury thermometer one should take of the mercury spills.
* No other laboratory instruments should be touched or handled which is not involved in the course of experiments.
micrometer : can measure the thickness of any small thing to 0.01 mm
vernier : can measure the inner and outer wall of anything to 1.05mm
Control Variables
Precautions
Units ( eg.. voltage is V etc. ) cause the units hold 1 mark of the question
Statements & justification
The rest are calculations and measurements
To produce more accurate or reliable results:
• Repeat experiment, to calculate average reading.
• Avoiding parallax error, look perpendicular to the ruler.
• If accuracy in measurement was asked, check for zero error.
Improvements that could be done to the experiment (temp. cooling):
• Same initial temperature.
• Same volume of water.
• Same shape of beaker.
• Beakers of same surface.
• Same room temperature.
• Stirring the water in the beakers.
• Same time intervals.
• Same surface area. (Unless given different containers)
• Adding water or cooling effect at regular intervals.
Heat loss could be reduced by:
• Insulation of beaker.
• Covering beaker with a lid.
For 2 values to be directly proportional,
• The graph of the values must be a straight line from the origin.
• As value 1 increase, value 2 increases.
For images produced from lenses on screens, precautions taken:
• Use of a darkened room for the experiment.
• Avoiding parallax error in measurement, and look perpendicular to the ruler.
• Object and lens at the same height from bench.
• Object/lens/screen is perpendicular to the bench.
To draw an image created from lens:
• Inverted from the original object.
• Sides are multiplied by the magnification.
*If values have difference by 0.1 or 0.01, that is the limit of experimental accuracy, so answers are about the same.
For spring extension experiment, variables that should be constant in the experiment:
• Number of coils.
• Diameter of spring.
• Selection of loads.
• Mass of spring.
micrometer : can measure the thickness of any small thing to 0.01 mm
vernier : can measure the inner and outer wall of anything to 1.05mm
Control Variables
Precautions
Units ( eg.. voltage is V etc. ) cause the units hold 1 mark of the question
Statements & justification
The rest are calculations and measurements
To produce more accurate or reliable results:
• Repeat experiment, to calculate average reading.
• Avoiding parallax error, look perpendicular to the ruler.
• If accuracy in measurement was asked, check for zero error.
Improvements that could be done to the experiment (temp. cooling):
• Same initial temperature.
• Same volume of water.
• Same shape of beaker.
• Beakers of same surface.
• Same room temperature.
• Stirring the water in the beakers.
• Same time intervals.
• Same surface area. (Unless given different containers)
• Adding water or cooling effect at regular intervals.
Heat loss could be reduced by:
• Insulation of beaker.
• Covering beaker with a lid.
For 2 values to be directly proportional,
• The graph of the values must be a straight line from the origin.
• As value 1 increase, value 2 increases.
For images produced from lenses on screens, precautions taken:
• Use of a darkened room for the experiment.
• Avoiding parallax error in measurement, and look perpendicular to the ruler.
• Object and lens at the same height from bench.
• Object/lens/screen is perpendicular to the bench.
To draw an image created from lens:
• Inverted from the original object.
• Sides are multiplied by the magnification.
*If values have difference by 0.1 or 0.01, that is the limit of experimental accuracy, so answers are about the same.
For spring extension experiment, variables that should be constant in the experiment:
• Number of coils.
• Diameter of spring.
• Selection of loads.
• Mass of spring.
for improving the accuracy of the results (for experiments):
Minimizing heating effect of a current:
• Lower current
• Increase voltage
• Add a lamp
• Increase resistance of a resistor
To increase accuracy of ray diagrams
• View bases of pins since pins may not be vertical
• Keep pins further apart
• Use more pins
• Avoid parallax, explain action and reason
• Repeats and average
Adjustments made to experiments will be made to increase accuracy
Improvement made to experiments about heating effect and insulation
• Lids
• Repeats
• Stirring
• Record max. Temperature
• Add insulation
• Keep constant room temperature
• Avoid heat loss
How to check if a rule is vertical:
• Protractor
• Use of set square
• Plumb line
• Spirit Level
Precautions taken in experiments about formation of images by a lens
• Use a darkened area
• Meter ruler on bench or clamped
• Object and lens same height on bench
• Mark on lens holder to show center of lens
• Take more readings
• Avoid parallax error, explain action and reason
• Lens\screen perpendicular to bench
Variables in experiments about springs and stretching effect:
• Number of coils
• Length of spring
• Diameter\thickness of spring or wire
• Range of loads
• Length of wire
• Coil spring
Sources of error in calculating circumference by string method:
• Parallax
• Diagonal winding
• Thickness of string
Improvement made to calculating circumference by string method
• Avoid parallax error
• Repeats and average
• Thinner string
• Parallel winding of springs
It's not the BEST list in the world, but hopefully it will help...
Control Variables
Precautions
Units ( eg.. voltage is V etc. ) cause the units hold 1 mark of the question
i'll have 24 hours and i won't get half of the mark, i'm suck at everything except math-_-
- Messages
- 52
- Reaction score
- 9
- Points
- 8
don't worry inshaAllah every thing will be cool
- Messages
- 58
- Reaction score
- 30
- Points
- 28
n
no i m not...just the fact that all the questions were from O/n 2011 variant 32.....i did the paper the previous nightwow u seem to be a genius
- Messages
- 52
- Reaction score
- 9
- Points
- 8
lucky girls.....u got good 6 sense