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International Baccalaureate: Physics
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- Marked by Teachers essays 2
Experiment to calculate the diameter of a piece of nichrome wire from its electrical resistance by varying the length of the wire3 star(s)
2 Conclusion and Evaluation States a conclusion, with justification, based on a reasonable interpretation of the data. States a conclusion based on a reasonable interpretation of the data. States no conclusion or the conclusion is based on an unreasonable interpretation of the data. 2 Aspect 1 - Concluding Aspect 2 - Evaluating Procedure(s) Evaluates weaknesses and limitations. Identifies some weaknesses and limitations, but the evaluation is weak or missing. Identifies irrelevant weaknesses and limitations. 1 Aspect 3 - Improving the Investigation Suggests realistic improvements in respect of identified weaknesses and limitations. Suggests only superficial improvements. Suggests unrealistic improvements.
- Word count: 1766
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.
- Word count: 673