PreparED Study Materials
Notes
Videos
Sedna: Solar System's Most Distant Object's Motion
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Journey to the outer reaches of our solar system with a captivating exploration of Sedna, the most distant-known object discovered in 2003. This enigmatic celestial body boasts a 1700 km diameter, a 10,500-year orbit around the sun, and a maximum speed of 4.64 km/s. Join us as we delve into the calculations of its elliptical orbit, its minimum speed, and the intriguing variations in its kinetic energy. Uncover the mysteries of Sedna's motion in this educational video.
Oscillating Mass: Period Calculation for 0.2 m Displacement
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Join us to unravel the mystery of oscillations! In this video, we'll determine the period of a mass oscillating with a 0.2 m displacement and 1.2 m/s maximum speed. Explore the physics behind periodic motion and discover the key to calculating its period. Dive into the world of harmonic motion with us!
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.
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.
Youngsters' Cliff Dives: Comparing Splashdown Speeds
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Dive into the physics of cliff jumping as we analyze the splashdown speeds of two adventurous youngsters. Explore the factors that determine their speeds and choose the best explanation among the options provided.
Orbit Altitude: Astronauts Above Planet's Surface
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Embark on a celestial journey! In this video, we calculate the altitude above a distant planet's surface where a starship orbits. Discover how astronauts experience reduced free-fall acceleration and the fascinating dynamics of space travel.















