Experiment to calculate the diameter of a piece of nichrome wire from its electrical resistance by varying the length of the wire

IB Group 4 Internal Assessment Chemistry Biology Physics Name: Date(s): 14/2/12 Candidate Number: 00-3072-074 Session: Level: HL Investigation Title: _______THE DIAMETER OF NICHROME WIRE______________ Internal Assessment Marking Form Criterion Required Aspects Level Complete (2) Partial (1) Not at All (0) Data Collection and Processing Records appropriate quantitative and associated qualitative raw data, including units and uncertainties where relevant. Records appropriate quantitative and associated qualitative raw data, but with some mistakes or omissions. Does not record any appropriate quantitative raw data or raw data is incomprehensible. 2 Aspect 1 - Recording Raw Data Aspect 2 - Processing Raw Data Processes the quantitative raw data correctly. Processes quantitative raw data, but with some mistakes and / or omissions. No processing of quantitative raw data is carried out or major mistakes are made in processing. 2 Aspect 3 - Presenting Processed Data Presents processed data appropriately and, where relevant, includes errors and uncertainties. Presents processed data appropriately, but with some mistakes and / or omissions. Presents processed data inappropriately or incomprehensibly. 2 Conclusion and Evaluation States a conclusion, with justification, based on a reasonable

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  • Level: International Baccalaureate
  • Subject: Physics
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Investigating the factors related to the crater formed by a falling object.

IB Physics SL 2 Leo Tran /17/12 W2 Mr. Chorman Design Lab Investigating the factors related to the crater formed by a falling object. Research The aim of the experiment is to investigate the relationship between the height from which a ball is being dropped on sand and the diameter of the crater it formed from its impact on the sand. This will be done by dropping the ball from fixed heights and then measuring the diameter of the crater formed for each height using an accurate meter scale. If the drop height of the ball is increased then the diameter of the crater will also increase. As the drop height is increased, the potential energy of the ball will also increase since PE = mass * g * height. As a result, the force of impact of the ball on the surface will increase because all the potential energy will be changed into kinetic energy (velocity) of the ball just before its impact on the sand. This increase in the force of impact will move more sand sideways and downwards resulting in the formation of a bigger bowl shaped crater, hence the increase in diameter. Variables * The independent variable is the drop height of the ball. * The dependent variable is the diameter of the crater formed by the impact of the ball on the sand. * The controlled variables include the same snooker ball, same type of sand, and keeping the sand parallel to the ground level.

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  • Word count: 673
  • Level: International Baccalaureate
  • Subject: Physics
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