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Research in Physics
Research in Physics
The focus with experiment-based research is the primary data produced as a result of the experiment(s) conducted by the student. Secondary sources in the form of scientific publications should be used to support a line of argument or indicate where the student has adapted their approach so as to produce different results. A consideration of the quality of the secondary source materials should also be offered to identify limitations or weaknesses in approach, method and so forth. Note: There are restrictions placed on the use of animals and humans when it comes to experiment-based research. For more, please check the IB’s Animal Experimentation Policy with your supervisor.
Non-experiment-based research should effectively question the reliability of the secondary source material used, and offer some critical insight into the strengths and limitations of the methodological approaches taken by the secondary sources.
Primary vs. Secondary Sources
Primary vs. Secondary Sources
Useful Research Resources
Useful Research Resources
Our Library Services (Sign-in with Google):
Gale OneFile: Informe Académico - Revistas y periódicos académicos de y sobre América Latina
Destiny Discover - our library online catalog
Free-ish Online Resources:
We do not have subscriptions to these resources, but most offer a limited number of sources for free. If there is a source that you want and cannot access, contact your librarian. We can often find the same source through a different service.
Research Questions and Methodologies
Research Questions and Methodologies
Research in the Sciences are often experimental, but can also be literature-based. Methodological approaches generally follow one of these types:
Experimental
Literature-Based
A review of existing case studies
An investigation based on existing experimental models (or approaches)
An investigation based on scientific theory
Examples
Examples
The relationship between the dimensions of an exhaust pipe and the sound it emits. What is the relationship between the length of an exhaust pipe and the frequency of the sound it emits?
Initial definition and discussion of the physics of sound. A clear opportunity for theory here and this can be supported by a student-designed simulation. Conducting the experiments may be difficult but can be achieved by analysing the recorded sound. Students may graph the relationship between length of pipe and frequency of sound.
¿Como varia la velocidad inicial de una flecha en un arco si cambia la tensión (longitud de la cuerda) de la cuerda en el mismo?
Discusión inicial sobre velocidad inicial y terminal con proyectiles. La hipótesis inicial es que la tensión de la cuerda va a ser proporcional a la velocidad inicial de la flecha. Pero para confirmar la hipótesis se deben considerar dos aspectos: el primero, y el más práctico, es disparar la flecha a un péndulo balístico y medir su respectiva energía cinética y su energía potencial al momento en el que el péndulo llega a su punto máximo para determinar su velocidad. Segundo, se puede analizar la relación que tiene la tensión de la cuerda cuando el arco está estirado y el impulso que le da a la flecha al disparar, esto es importante porque al incrementar la tensión en una ballesta tradicional el impulso será menor ya que la flecha es acelerada por menor tiempo pero con más fuerza, y existirá un punto en el que se presente un rendimiento decreciente porque la flecha no permanecerá suficientemente tiempo en contacto con la cuerda para alcanzar su máxima velocidad. Un péndulo balístico casero se usará para medir la velocidad inicial de una flecha casera. Al péndulo se le disparó usando una ballesta casera con un arco de bambú aplicando 5 diferentes tensiones a la cuerda del mismo.
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