PreparED Study Materials
PHYS 227: Elementary Mathematical Physics
School: University of Washington
Number of Notes and Study Guides Available: 3
Notes
Videos
Estimating Car's Initial Speed from Skid Marks: A Physics Explanation
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Estimate a car's initial speed from skid marks using physics principles. Apply Newton's Second Law and equations of motion to deduce the initial velocity. Understand the role of frictional force in car deceleration during accidents.
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:
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!
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:
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!
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:
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.
Circuit Analysis: Light Intensity Changes with Switch
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Unlock the world of electrical circuits and light intensity! In this video, we explore a circuit with three lights connected in parallel, featuring an open switch. Discover what happens to the intensity of each light when the switch is closed. Join us for a journey through electrical concepts and enlightening explanations.
Monkey and Cart: Impact of Cantaloupe on Speed
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Join us as we delve into the physics of a monkey and her cart, complete with a spring. Witness the intriguing change in maximum speed when the monkey picks up a cantaloupe. Learn how mass and vibrations affect the outcome.