PreparED Study Materials
Notes
Physics 123 autumn 15 week 1 notes (Physics)
PHYS 123
University of Washington
7 pages | Winter 2016
Phys123 week 8 notes: more quantum (Physics)
PHYS 123
University of Washington
5 pages | Winter 2016
Study Guides
Videos
Slinky Stretch: Calculating Transverse Wave Speed
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full solution
Discover the fascinating world of Slinky physics as we explore the speed of transverse waves when this iconic toy is stretched by a 2.0-N force. Dive into the science behind the Slinky's behavior!
Violin String Tension and Angle-Dependent Force
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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.
Kinetic Energy: Saturn 5 & Apollo at 11.2 km/s Speed
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full solution
Learn how to calculate the kinetic energy of a Saturn 5 rocket with an Apollo spacecraft attached using physics principles and formulas. Understand the importance of unit conversion and the work-energy theorem as you plug values into the KE = 1/2 mv² formula. Discover that the kinetic energy for this rocket and spacecraft combo is an astonishing 1.82 x 10¹³ Joules.
Angle of Hanging Hand Straps on a Turning Streetca
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Discover the physics behind the angle formed by loosely hanging hand straps on a streetcar negotiating a curved turn.
Capacitor Potential, Separation, and Work Calculations
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Explore the concept of capacitance and learn how to calculate potential difference, the impact of separation, and the work required for a parallel-plate air capacitor.
River Rescue: Angle for Direct Approach to Child
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Join us for a dramatic river rescue mission! In this video, we solve the problem of how a rescue team can reach a child in danger of drowning in a fast-flowing river. We calculate the angle from the shore for their pilot to approach the child directly, considering the river's current and the boat's speed. Explore the principles of vector addition and save lives!
