Physics 1021 Lecture Notes - Lecture 4: Strong Interaction, Net Force, Contact Force

53 views4 pages

Document Summary

We try to understand physics behind pushing, walking, driving, and flying. Whenever one object exerts a force (called action fore) on a second object exerts an equal and opposing force (called reaction force) on the first. When a hammer is applying a force on the nail (applied force) the nail is applying a force on the hammer (reaction force) A(cid:272)tio(cid:374) a(cid:374)d rea(cid:272)tio(cid:374) for(cid:272)es a(cid:272)t i(cid:374) differe(cid:374)t o(cid:271)je(cid:272)ts. Sho(cid:449)i(cid:374)g (cid:374)e(cid:449)to(cid:374)"s (cid:271)alls if you pull one ball and let go, it will hit the other causing it to move, but that second ball will cause the first to move back again too. Universe (everything in this universe) is controlled by 4 forces: gravity (gravitational force) Gravitational force of one object is attracted to the gravitational force of another object. This force is due to the mass of an object. Black hole is a huge mass, everything is attracted to it: electromagnetic force (positive and negative charge)

Get access

Grade+20% off
$8 USD/m$10 USD/m
Billed $96 USD annually
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
40 Verified Answers
Class+
$8 USD/m
Billed $96 USD annually
Class+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
30 Verified Answers

Related textbook solutions

Related Documents