forces Flashcards
what is a force
a push or pull on an object caused by it interacting with another object
contact force or non contact force
thrust
contact force
contact force or non contact force
upthrust
contact
contact force or non contact force
lift
contact
contact force or non contact force
air resistance/drag
contact
contact force or non contact force
tension
contact
contact force or non contact force
water resistance
contact
contact force or non contact force
rolling resistance
contact
contact force or non contact force
friction
contact
contact force or non contact force
gravitational
non contact
contact force or non contact force
magnetic
non contact
contact force or non contact force
electrostatic
non contact
what is the unit for weight
newtons (N)
what is the equation for weight
weight = mass x gravity
N = kg x N/kg
what is the equation for force
f = m x a
N = kg x m/s/s
velocity is determined by
speed and direction
For objects that obey Hooke’s law
the extension is directly proportional to the force applied
- straight line relationship through the origin
what is the equation for Hooke’s law
F=ke
k = spring constant (N/m)
e = extension (m)
f = force (N)
work done equation
Wd = f x d
Wd = work done (J)
f = force (N)
d = distance (m)
do some questions in the book especially the force diagrams
🔥🔥🔥🔥
