Forces and motion
how fast an object's position changes with time
speed
for every action there is a equal and opposite reaction
newton's 3rd law of motion
force x distance
work
device that makes it easier to do work
machine
Force that opposes motion of an object
friction
Description of a moving object's speed and direction
velocity
acceleration depends on object's mass and amount of net force applied on it
newtons second law of motion
energy that is stored bcos of its position and the force of gravity
potential energy
number of times a simple machine multiplies an effort force
mechanical advantage
net forces bare equal in strength and opposite in direction
balanced force
change in velocity an object over time
acceleration
mass x velocity
momentum
energy of motion
kinetic energy
simple machine with rigid bar and pivot point
lever
sum of all forces acting on an object
net force
This push or pull on an object causes an object to accelerate
force
all planets stars and particles of matter exert gravitational force
newton's law of universal gravitation
ability to do work
energy
grooved wheel that turns by the action of rope in the groove
pulley
Law thgat states object in motion will remain in motion
Newtons first law of motion
Mass x Acceleration
Force
Distance / time
speed /velocity
work / time
power
work done by machine / work that was put into the machine
efficiency