force Flashcards
(37 cards)
1 Kg= N
9.8N
friction
force that opposes the motion of a object
2 contact forces are:
contact force and action at distance
gravity
attraction of 2 objects due to their mass
mass
matter in a object
Newton formula
Fᵍ=MG N=9.8W
work
the amount of effort spent when a force moves an object
energy
the ability to do work
work unit
joules
3 types of energy
potential kinetic gravitation
potential energy
energy that is stored
kinetic energy
the energy to make something move
gravitation energy
potential of object that is able to fall
work formula
W=FD J=NM
thermal energy
energy caused by the increase in temperature of an object
transitions
energy can not be created or destroyed only transferred
ima
ideal machine advantage where there is no friction
ima of 1
what you put in you get out meant to change direction
ma<1
less output them input meant to increase speed
lever
a straight bar that is supported at one point that is the fulcrum
3 types of levers
1st class 2nd class 3rd class
1st class lever
fulcrum is in the middle (seesaw)
2nd class lever
fulcrum is on side and fout is in middle and fin is on the outside (bottle opener)
3rd class lever
fin is in the mid and fout is in the out side and the fulcrum is in the other side (base ball bat)
