Does Huygens’ principle apply to sound waves? To water waves? Explain.
Newton’s Laws of Motion Force and Mass ● Forces re a push or pull ● Forces act on an bject ● Forces require n agent to supply he energy ● Forces re ectors ● Forces can be contact (short times) or long range force (such as gravity) ● The direction of a force is a vector, so when an object is at rest, there i equal force acting on objects from both sides. When a force becomes greater on one or more sides that are not qual, the object will move. ● Mass isa measure of how hard an object’s velocity is to change. Newton’s First aw