What are Systems?

To perform a specific function using physical parts

Physical systems rely on physical parts, while social systems are made up of people or living things

Components are the parts required by the system to perform a specific function

<p>A social system, such as a group of people working together</p> Signup and view all the answers

<p>To perform a specific task or function</p> Signup and view all the answers

<p>Contact forces must touch the object that they push or pull, whereas action-at-a-distance forces can push or pull an object without touching it.</p> Signup and view all the answers

<p>Friction is a force that opposes the relative motion of an object, causing it to slow down or stop. It depends on the surface and object properties.</p> Signup and view all the answers

<p>Gravity is the attraction between two objects due to their mass, and its strength depends on the mass of each object and the distance between them.</p> Signup and view all the answers

<p>Fg = mg, where m is the mass of the object in kg, and g is the acceleration due to gravity (9.8 N/kg) on Earth.</p> Signup and view all the answers

<p>The weight of a 50 kg student on Earth is 490 N, calculated using Fg = mg = 50 kg x 9.8 N/kg.</p> Signup and view all the answers

<p>Hitting a baseball with a bat (contact force) versus the attraction between two objects due to gravity (action-at-a-distance force). The key difference is that contact forces require physical touch, while action-at-a-distance forces do not.</p> Signup and view all the answers