This content analyzes the normal force on a driver in a car moving at a constant speed over a circular hill and into a valley. By first using the condition of zero normal force at the top of the hill to determine the centripetal force,...

This content explains how to analyze forces on an inclined plane for a loaded box, differentiating between static and kinetic friction. It demonstrates calculations for the minimum force to prevent sliding down, the force to initiate...

This content provides a step-by-step solution for a physics problem involving a crate pushed at a constant speed up a frictionless inclined plane by a horizontal force. It demonstrates how to apply Newton's Second Law by resolving forces...

This content explores the dynamics of a connected elevator system to calculate the normal force exerted on a box inside one of the accelerating cabs. It demonstrates the application of Newton's Second Law by first determining the...

This video analyzes the forces and work done on a person being lifted from a cliff, breaking down the process into different stages of motion. Learn how to apply physics principles to understand a real-world rescue

Learn how to calculate force, work done, kinetic energy, and speed of a box being lowered. This video applies the Work-Energy Theorem to a real-world physics problem, ideal for understanding energy transformations.

This content explains the rotational dynamics of a judo foot-sweep, calculating the initial angular acceleration of an opponent. It analyzes the torques produced by both gravity and an applied pull, demonstrating how force placement and...

Understand what makes a force conservative or non-conservative through four clear conditions. Learn how path independence and energy conservation define forces like gravity and contrast with forces like friction.

Learn how work done by forces changes an object’s potential energy and how energy interchanges between kinetic and potential forms. Illustrated with relatable analogies like the banana toss and other examples

This content explains Newton's Second Law for Rotation (τnet =Iα), drawing a clear analogy with its linear counterpart. It then demonstrates its application by solving a detailed problem involving a falling block and a rotating disk,...

Learn how gravitational force does positive or negative work to transform an object's kinetic energy during ascent and descent. This Class 11 Physics lesson explains the work-energy theorem through real-life vertical motion scenarios.

Understand the four key types of forces—gravitational, normal, frictional, and tension—and how they affect motion. Learn to classify, analyze, and apply these forces to solve mechanics problems

Millikan's Oil Drop Experiment: A Discovery and Impact
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Experiment
al Setup:
• The experiment involved measuring the force on charged oil droplets suspended between two
metal plates.
• The apparatus...

The Moon holds Earth in place and dictates our seasons. What happens to planets without a moon like ours? Physics - Our Solar System - Learning Points. The Moon formed after Earth collided with its twin, Theia. In proportion to the size...

If a skydiver jumps out of a plane, when will they stop accelerating? Competing physical forces hold the answer. Physics - Forces - Learning Points. Terminal velocity is the maximum constant velocity. Terminal velocity increases with...

What is the difference between mass and weight?
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Physical processes -Force and mo
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ion - Gravity />

Learning Points
Mass is the amount of stuff in an object, it i
s

measured in grams and...

This section of the review covers mechanical energy, the Work-Energy Principle, and power. Mechanical energy is the sum of a system's kinetic, gravitational potential, and elastic potential energies. In this review, we emphasize how...

This review of the second half of Unit 2: Forces and Translational Dynamics for AP Physics 1, we cover key topics such as Newton’s Law of Universal Gravitation, spring force, and circular motion. We explain gravitational interactions...

Newton’s Third Law states that for every force exerted by one object on another, the second object exerts an equal and opposite force on the first. These forces act simultaneously and are external to the system, meaning they don't...

This review of the first half of Unit 2: Forces and Translational Dynamics for AP Physics 1 covers Newton’s Laws, forces, and the center of mass. We explain how to find the center of mass for a system of particles and objects with...

Explore the concept of weight as one of the four fundamental forces acting on airplanes during flight. Learn how weight, the gravitational force pulling objects toward the Earth's center, interacts with lift to determine an aircraft's...

In this video, we delve into a practical example to understand the buoyant force acting on submerged objects. We explore the physics behind a wood cylinder submerged in water, calculating the buoyant force and discussing common...

In this video students will develop an argument that the gravitational force exerted by Earth on objects is directed down. Specific attention is given to guiding students to conduct their own investigations that illustrate the force of...

This video covers:

- What an orbi
t is
- Why objects orbit rather than flying off or being
sucked in
- Why we consider orbiting objects to be continuall
y accelerating
- Why objects with a smaller orbit h

ave to...