PreparED Study Materials
Videos
Tennis Ball Momentum and Change in Direction
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the physics of a tennis ball hitting a wall and its momentum changes. Learn about the original momentum, changes, and the concept of reference objects in this engaging video.
Car Deceleration: Angular Acceleration, Revolutions, Time, Distance, a
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the physics of a car's quick deceleration, including angular acceleration, revolutions, time, distance, initial velocity, and the realism of the scenario.
Calculating k, Amplitude & Frequency for Fisherman's Scale
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
In this video we tackle the real-world physics problem of calculating the spring constant for a fisherman's scale along with the amplitude and frequency of its vibrations when a fish is added. We use Hooke's Law to find the spring constant and then apply oscillation formulas to determine the amplitude and frequency of the fish's vibrations
Lunar Lander Descent: Initial and Final Velocities
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Join us on an exciting lunar adventure as we explore the descent of a lunar lander towards the moon's surface. We'll unravel the physics behind its journey using the equation y(t) = b - ct + dt^2, and answer questions about the lander's initial and final velocities. Get ready to explore the dynamics of space exploration and lunar landings in this informative video!
Time and Distance: Comparing 85 km/h and 115 km/h Cars
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
In this video, we explore the concept of time and distance as we compare two cars traveling at different speeds along a straight highway. We'll calculate when the faster car arrives at a destination 16 km away and find out how far they must travel for it to arrive 15 minutes before the slower car. Join us for an engaging journey through the world of physics and velocity!
Particle Count, Charge, and Mass of Electron-Proton System
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
oin us as we delve into the intriguing world of subatomic particles! In this video, we'll decipher the composition of a system containing 1525 electrons and protons with a net charge of -5.456 x 10^-17 C. Discover the precise number of electrons and calculate the total mass of this dynamic system. Unlock the secrets of particle physics with us!



















