All Work and no Play Toàn công chẳng có gì vui Work, work, work. You might head off to your job one day, sit at a computer, and type away...
What About the Moon? Còn Mặt trăng thì sao? But what keeps the Moon from falling down, if all of this gravity is so strong? Well, the...
Forces of Attraction Lực hấp dẫn Gravity or gravitational forces are forces of attraction. We're not talking about finding someone really cute...
Friction Basics Căn bản về ma sát Friction is a force that holds back the movement of a sliding object. That's it. Friction is just that simple....
Momentum is another vector measurement. Momentum is in the same direction as velocity. Scientists calculate momentum by multiplying the mass of the...
Energy Around Us Năng lượng quanh chúng ta We use the concept of energy to help us describe how and why things behave the way they do. We talk...
Newton's Laws of Motion Định luật chuyển động của Newton First Law Định luật thứ I There was this fellow in England named Sir Isaac...
Vector Vec-tơ Imagine a situation where you're in a boat or a plane, and you need to plot a course. There aren't streets or signs along the way....
FORCE Lực Forces are a big part of physics. Physicists devote a lot of time to the study of forces that are found everywhere in the universe. The...
Simple and Complex Movement Chuyển động đơn giản và phức tạp There are two main ideas when you study mechanics.The first idea is that there are...
Force Lực What is force? Lực là gì?
Mass and WeightKhối lượng và Trọng lượng What is mass? Khối lượng là gì? Mass is a measurement of how much matter is in an...
Basic Vector MathKhái niệm cơ bản về toán véc-tơ Vector Basics Cơ bản về véc-tơ A vector is a property that has both a magnitude...
Speed it Up, Slow it Down Tăng tốc, giảm tốc The physics of motion is all about forces. Forces need to act upon an object to get it moving, or to...
Mechanics and Motion Cơ học và Chuyển động Motion is one of the key topics in physics. Everything in the universe moves. It might only be a small...
Scalars and Vectors Đại lượng vô hướng và Véc-tơ There are a lot of different mathematical quantities used in physics. Examples of...
Motion 1. Mechanics and Motion 2. Speed it Up, Slow it Down Scalars and Vectors Vector Math Mass and Weight Force
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