PreparED Study Materials
Notes
Videos
Deciphering Unknown Wavelength via Double Slit: The 355nm Light Revela
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Uncover the methodology behind determining an unknown light's wavelength using the double slit experiment. Understand how fringe spacings relate to the light's properties. Find out the significance of second-order fringes and their measurements.
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.
Adding Water to a Glass: Temperature Change Calculation
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Watch as we explore the fascinating world of thermal expansion in this video. We start with a glass filled to the brim with 350.0 mL of water at a scorching 100.0°C, and then witness the magic unfold as the temperature decreases to a cool 20.0°C. But the real question is, how much more water can we add to the glass? Join us to find out!
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.
Warming Inhaled Air: Volume Increase Calculation
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the fascinating science of air temperature change in this video! We calculate how the volume of inhaled air increases as it warms from 0.0°C to body temperature. Discover the principles of thermal expansion in the human body.
Calculating Jet Engine Thrust for Cruising Speed
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Dive into the world of aviation as we calculate the thrust required for a medium-sized jet to maintain a cruising speed of 230 m/s at a specific altitude. Explore the impact of air density and drag coefficients on aircraft performance.



