Newton's Law of Motion Part 2 скачать в хорошем качестве

Newton's Law of Motion Part 2

BrightMind21 please subscribes    • Newton's Law of Motions |first   Newton's First Law of Motion: The Law of Inertia "An object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction, unless acted upon by an unbalanced net force." Key Concept: Inertia. This is the tendency of an object to resist changes in its state of motion. What it means: A force is not needed to keep an object moving. A force is needed to change its motion (to start it, stop it, speed it up, slow it down, or change its direction). Everyday Example: When a car stops suddenly, you lurch forward. Your body was in motion and "wants" to keep moving forward until the seatbelt (an unbalanced force) stops you. Simplified: No net force → no change in motion. Newton's Second Law of Motion: The Law of Acceleration "The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. The direction of the acceleration is in the direction of the net force." This is expressed in the most famous equation in physics: F = m × a F = Net Force (in Newtons, N) m = Mass (in kilograms, kg) a = Acceleration (in meters per second squared, m/s²) Key Concept: Force causes acceleration. A heavier object requires more force to accelerate the same amount. What it means: The net force (the sum of all forces) determines how much an object speeds up or slows down. Mass is the measure of inertia. Everyday Example: Pushing a shopping cart (small mass) gives it high acceleration. Pushing a car (large mass) with the same force gives it very little acceleration. Simplified: Force = mass × acceleration.