Facts About Force | Acadia University

University:
Acadia University
Course:
PHYS 1013 | Introductory Physics 1
Academic year:

2025
Views:

477

Pages:

7
Author:

Nabila N.

FACTS ABOUT FORCE lJFundamental Concept Force is one of the basic ideas in physics. It's simply a push or pull that can change the motion of an object. lJForce Doesn't Always Cause Motion If you push a wall, you are applying force, but the wall doesn't move because other forces (like the wall's foundation) balance yours I lJ Weight is a Force Weight is just the force of gravity acting on your mass. It changes depending on where you are (less on the Moon, more on Jupiter). WEf ' WEIG-HT LESS MORE WEIG-HT WEIGHT EARTH L. MOON '-1 J"vPlicR lJ Force is a Vector Vector quantity can be anything with magnitude and direction; in the case of a mechanical force, magnitude refers to its strength and direction to where it is applied. For example, a force exerted near the hinges of a door feels harder than a force exerted at the extreme edge. ,--- am More force I -_,,,...._ ~ ""\ -~SS tSS ~or(t --= ' Force - .. fr) + ____c_Lon lJ Small Forces Can Add Up Tiny forces like air resistance or friction seem weak, but over time they can slow down even the fastest moving object. That's why satellites in low orbit eventually fall back to Earth. Smal I forces • ; ) ( r..~- ~ ~ ~--- ,._, "_. ' • ,".:-;....-..... ~) .. ¢=i friction lJ Friction is Both a Friend and a Foe - Friction is a resisting force. Without it, we cannot walk, write, or drive. But too much friction causes wear and waste of energy •