PreparED Study Materials
Notes
Videos
Flashlight Bulb Power and Battery Terminal Voltage
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Illuminate the science of flashlight power! In this video, we explore how a 6V bulb is powered by a 3V battery with an internal resistance. We calculate the power dissipation of the bulb and the terminal voltage of the battery, unraveling the physics of electrical circuits.
Understanding the Law of Conservation of Mass in Chemical Reactions
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the fundamental principles of this law, unraveling its implications, and clarifying common misconceptions related to mass preservation in chemical reactions.
Electric Potential at Circle Center with Symmetric Charges
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the fascinating world of electric potential as we calculate the value at the center of a circular arrangement of five equally charged particles. Join us for a captivating journey into electrostatics and symmetry in this enlightening video.
Moon vs. Earth Jump: Gravity's Impact on Distance
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Join us in a lunar leap! We estimate how gravity affects jumping distance on the Moon compared to Earth, with the same takeoff speed and angle. Explore the moon's reduced gravity and its impact on human capabilities.
Calculating Ion Path Radius in a Mass Spectrometer: Electric vs Magnet
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore how a mass spectrometer works by analyzing an ion's path through the device. Understand the relationship between electric and magnetic fields in determining the ion's trajectory. Learn to compute the radius of an ion's path within the mass spectrometer.
Terminal Voltage Calculation for Battery with Resistors
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Unlock the secrets of battery performance in this video! We calculate the terminal voltage for a battery with internal resistance, connected in series with resistors of different values. Explore the effects of resistance on voltage in electrical circuits.

















