laws & forces Flashcards
speed with direction
velocity
strain due to pulling
tension force
measures how much and which direction
vector
attraction force between all matter
gravitational
object slowing over time
deceleration
turns motion into heat
friction
amount or strength
magnitude
a push or pull that causes an object to change its speed, direction, or shape
force
rate of change of velocity
acceleration
upward force of fluid against an object
buoyancy force
are equal in size and opposite in direction
balanced force
are equal in size and equal in direction
unbalanced force
are not equal in size in direction
unbalanced force
causes a change in motion
unbalanced force
does not cause a change in motion
balanced force
is measured in newtons
unbalanced force & balanced force
motion of liquid or gas particles
fluid friction
continuous surface contact
sliding friction
keeps you standing
static friction
a little bit of surface contact as object is rolling
rolling friction
what two things affect the magnitude of gravitational forces
mass & distance
f= m x a
newton’s 2nd law
for every action there is an equal & opposite reaction
newtons 3rd law
law of inertia
newtons 1st law
forces are always paired
newtons 3rd law
an object in motion stays in motion(in same direction & speed) and an object at rest stays at rest, unless acted upon by an outside force
newtons 1st law
the greater the force the greater the acceleration, the greater the mass the greater the force needed for the same acceleration
newtons 2nd law
the greater the ______ the greater the inertia
mass/speed
the greater the ______ the greater the inertia
speed/mass
1) name a type of acceleration
something accelerates as it speeds up
2) name a type of acceleration
something accelerates as it slows down
3) name a type of acceleration
something accelerates as it changes direction
acceleration formula
final velocity- initial velocity
_____________________
time
meter per second sqaured (m/s2)
acceleration
meter per second (m/s)
velocity
force formula
force= mass x acceleration