PreparED Study Materials
Notes
Videos
Projectile Range and Optimal Launch Angles Explained
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Join us in this enlightening video as we explore the fascinating world of projectiles and their optimal launch angles. We dive into the physics behind how a fixed initial speed affects the range of a projectile and why, for most angles, there are two choices that yield the same range. Delve into factors that affect an archer's ability to hit a target, including wind, and learn why a smaller angle, closer to the horizontal, is often preferable. Discover when and why a larger angle may be necessar
U-Tube Liquid Heights: Exploring Oil & Water Density Dynamics
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Exploring the behavior of oil and water in a U-shaped tube when a barrier is removed. Understand the impact of differing densities on fluid heights. Witness equilibrium scenarios effects of equal densities and the displacement dynamics of lighter liquids.
Squirrel's Fall: Velocity and Deceleration Analysis
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Analyze the physics of a falling squirrel, calculating its velocity upon hitting the ground and the deceleration due to limb bending.
Electric Field and Conductors: Point Charge Effects
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the intriguing interplay of electric fields and conductors in this video. We examine how the presence of a point charge inside or outside a conductor affects the electric field. Join us to unravel the principles of electrostatics.
Violin String Tension and Angle-Dependent Force
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Discover the physics behind violin string tension and the angle-dependent force required when pushing it against the neck. Explore how the angle affects the force needed.
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.















