Science Flashcards
Newtons first law of motion
an object in motion stays in motion and an object at rest stays at rest unless acted upon by an outside force
Newtons second law of motion
force=mass x acceleration
newtons third law of motion
for every action (force) in nature there is an equal and opposite reaction
what is speed
the rate at which an object moves
what does speed depend on
distance and the time it takes to travel
what is the formula for speed
distance divided by timew
what is the formula for average speed
total distance/total time
what is velocity
speed with a direction
what is acceleration
the rate at which velocity changes
what is the formula for velocity
distance/time with a north east south or west
what is the formula for acceleration
final velocity-initial velocity divided by time
what is units for acceleration
meter/sec/sec with direction or m/s/s
what does momentum depend on
mass and velocitu
what is the formula for momentum
mass x velocity
what is the symbol for p
lowercase p
what is the unit for momemtum
unitkgm/s
what is inertia
tendency of all objects to resist a change in motion
what is a force
a push or pull
what is the types of friction forces
static
kinetic
drag
frictio
what is static friction
a force that resist the start of sliding motion between 2 surfaces that are touching
what is kinetic friction
a force that resists that movement of 2 surfaces that are touching and moving relative to eachother
what is drag friction
a force that opposes trhe motion of a object in a fluidwa
what is friction
a force that opposes motionx
what is gravity
a non contact force of attraction between objects due to their mass
what is free fall
gravtiy is pulling
