PreparED Study Materials
Notes
Videos
Earth's Measurements: Circumference, Surface Area, and Volume
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore Earth's dimensions in this video! We calculate its circumference, surface area, and volume. Join us to understand the scope of our planet, both in its physical size and mathematical concepts.
Electromagnetic vs. Gravitational Forces: A Comparative Analysis
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the relative strengths of two fundamental forces, the electromagnetic force and the gravitational force, in this enlightening physics tutorial. Learn about Coulomb's law and Newton's law of gravitation, and uncover the significant difference in their constants that makes the electromagnetic force much more powerful than gravity.
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.
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Coherence of Light Sources: Pairs Examined
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the fascinating world of light coherence! In this video, we examine various pairs of light sources to determine their coherence. From candles to reflections in mirrors and soap films, we unravel the concept of coherent light sources.
Comparing Single-Pane and Double-Pane Heat Loss Ratios
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the world of thermal insulation and heat loss in this video. We compare single-pane and double-pane windows, calculating the heat loss ratio. Delve into the fascinating science of heat transfer and insulation factors. Join us to uncover the secrets behind energy-efficient windows.


