Force
push or pull
What is a Force?
objects in motion continue in a straight line at a constant velocity unless acted upon
What is Newton's Law of Inertia?
gravity is a field force that acts between two objects
What is the law of universal gravitation?
a contact force that works against the motion of objects moving past each other
What is friction?
a force that accelerates an object toward the center in a circular motion
What is centripetal force?
studies forces and how they can changes an objects motion
What is Dynamics?
acceleration is directly proportional to the net force acting on an object
What is Newtons Law of Acceleration?
9.81 m/s2
What is accelration due to gravity?
friction between two objects attempting to move but not moving yet
What is static friction?
forces that underlie all the known forces in nature
What is a fundamental force?
an object touches another object
What is a contact force?
for every action force, there is an equal and opposite reaction force
What is Newton's Third Law of Action Reaction?
What is mass?
the friction that exists when two obects are in motion relative to each other
What is sliding friction?
strongly attracts at distances equal to the diameter of a proton
What is a strong nuclear force?
Force at a distance
What is a field force?
a pulling force transmitted through a rope
What is tension?
W=mg
What is the formula for weight force?
when wheels are added to make movement easier
What is rolling friction?
short range force, attracting at distances smaller than the radius of a proton
What is a weak nuclear force?
shows an object and forces acting on that object as vectors
What is a free body diagram?
a man pushing on a wall, the wall is pushing back
What is a normal force?
25.89m/s2
extra friction
What is traction?
a force that exists between electrically charged particles
What is an electromagnetic force?