Question
Which of the following are examples of non -contact forces? Friction Tension Gravitational forces Magnetic forces Air resistance Static electricity
Answer
4.2
(217 Votes)
Philipp
Professional · Tutor for 6 years
Answer
Gravitational forces, Magnetic forces, Static electricity.
Explanation
There are fundamentally two types of forces – contact forces and non-contact forces. Contact forces demand that the interacting objects be physically recognizable and in contact; i.e., they occur because it's physically usual for two substances too close to not react. Non-contact forces don't necessitate the physical connection of two objects; they interact from wherever they are. They inspire at a distance, and thus unsubstantial distance is fine. 1. Friction: It's considered a classic contact force; sliding of surfaces on each other results in this resistance force. It's definite as a contact force. 2. Tension: It's an illustration of a mechanical contact force, extending from the ergonomics of particles on the material; precisely when the system is stationary. 3. Gravitational forces: All matter particles generate gravitational pull towards each other, no matter how far they stand away. Even the minuscule gravitational attraction of distant celestials influences us -though unapparent to any but careful scientific observation.4. Magnetic forces: Spring from the interactions of charged particles, similar to electrical forces. It does not need contact to verily exercise these forces. 5. Air Resistance: It involves friction taking place between fluid and solid, consequently taken as contact force.6. Static electricity: Electrostatic flexes act to get electric charges or electrostatically charged objects to tug or push on one another, mutually distant they are; they lack to touch physically to respond.