PreparED Study Materials
Notes
Videos
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.
Determining Kinetic Friction with a Spring-Loaded Block
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Understand how to determine the coefficient of kinetic friction using a wooden block and a spring. Employing the law of conservation of energy, we use the spring's compression and stretch measurements. Through energy equations and Newton's second law, we deduce that ? equals 0.4.
Jet Takeoff: Tire Rotation, Centripetal Acceleration, and Bacterium's
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Discover the dynamics of a commercial jet takeoff in this video! We explore tire rotation speed, centripetal acceleration, and a bacterium's grip on the rim. Dive into physics and microscopic forces, all while considering weight ratios.
Optimizing Launch Tube Acceleration for Maximum Points
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Discover how to optimize the launch tube acceleration to achieve the maximum height and earn the most points in your laboratory experiment.
Pendulum Clock in the Rockies: Speed Change and Adjustment
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the effects of altitude change on a pendulum clock's speed when moved from the Mississippi Delta to the Rocky Mountains. Learn why it runs faster or slower and how to make adjustments. Discover the assumptions involved in this fascinating timekeeping scenario.
Calculating Enclosed Charge Using Gauss's Law
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Using a cube measuring 28.0 cm per side, we calculate its total electric flux. Through Gauss's law, we determine the box's enclosed charge. The resultant enclosed charge is 9.77 x 10?? C.






