PreparED Study Materials
Notes
Videos
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.
Understanding Mechanical Work: The Interplay of Forces, Movement, and
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the fundamental concept of work in physics and discover the key conditions, including movement, net force, opposing force, and direction, that must be met for work to be accomplished when pushing on an object, such as a rock.
Why Does Hot Concrete Feel Hotter than a Rug in the Summer?
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Uncover the science behind a common sensation - why hot concrete feels hotter than a rug at the same temperature on a scorching summer day. We'll explore the factors at play in this intriguing phenomenon and provide a clear understanding of the science behind it.
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:
full solution
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.
Calculating Work from Speed Change: Water-Skiing Physics Explained!
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the physics behind a water-skier accelerating from an initial speed to a faster one. Learn how to calculate the work done using the change in kinetic energy. Understand the principle of energy conservation through real-world examples.
Calculating Average Acceleration for a Sports Car
Want To Learn More? To watch the entire video and ALL of the videos in the series:
full solution
Explore the world of high-performance sports cars and learn how to calculate their average acceleration when accelerating and coming to a stop.
