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Physics HL IA Samples
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How does the Ripple factor of an AC (alternating current) to DC (Direct current) bridge rectifier circuit depend on the permittivity of the material placed between the two parallel plates of the capacitor filter, within the permittivity range of 1.0 to 9.0?
This IB Diploma internal assessment focuses on the motion of fluids, inspired by the student's experience with paper boat races in a tub of swirling water. The project explores the velocity of particles in a fluid, emphasizing the importance of understanding fluid motion through the study of particle motion and how the fluid affects the shape of objects within it. The investigation aims to examine how the shape of paper boats changes over time in response to fluid dynamics.
How does atmospheric temperature ranging between 10℃ to 55℃ with a regular interval of 5℃ affect the frequency of E (1st string) and E (6th string) of an acoustic guitar?
This IB Diploma internal assessment delves into the influence of parents in shaping their children's career choices. The student expresses a personal belief that parental opinions serve as a significant anchor in decision-making. Drawing from their own experience, growing up in a household immersed in music and surrounded by artistic influences, the student explores the impact of their parents' professions as a sound engineer and professional singer on their own passion for art, culture, and music. The assessment aims to examine the role of parental influence in career decision-making processes.
How does the ripple factor expressed as a ratio of output AC current and the output DC current of a bridge rectifier circuit with capacitive filter depends on the capacitance of the capacitive filter when varied over a range of 1mF to 10mF?
This IB Diploma internal assessment explores the Bridge Rectifier Circuit, which is a highly efficient method of converting AC current to DC current. The student highlights the significance of this circuit in achieving near 100% rectification when designed with proper circuit elements. The investigation focuses on the four PN-junction diodes that comprise the bridge rectifier circuit, discussing their role in blocking current flow in one half cycle of the AC signal and rectifying current in the other half cycle. The project also examines the use of a parallel capacitor as a filtering component to prevent AC components from reaching the output load.