PreparED Study Materials
Notes
Videos
How is work related to energy?
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the profound link between these two fundamental concepts in physics, and understand how they relate through the Work-Energy Theorem.
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.
hysics of a Coin Drop in an Ascending Elevator
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
In an elevator ascending, an occupant drops a coin, which accelerates at a different rate than expected. This reveals the elevator's own acceleration towards the Earth. By analyzing forces and tensions, we determine the cable's tension to be 16000 N.
Newton's Third Law and Force Pairs: System of Interest Impact
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Delve into Newton's third law of motion and explore how the choice of the 'system of interest' influences whether force pairs cancel each other out.
Pebble Velocity for Horizontal Impact on Juliet's Window
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the physics behind calculating the velocity of pebbles thrown by Romeo to hit Juliet's window with only a horizontal component.






