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Forces

Review of Forces

QuestionAnswer
anything that can cause an object to be displaced or accelerate force
law that says Force= mass times acceleration (F=ma) Newton's 2nd law of motion
when forces acting on an object are equal and opposite (will cancel out) balanced
the sum of all forces acting on object net
F = Gm1m2/ d^2 Universal gravitation equation
force that always opposes motion friction
SI unit for force and weight Newtons ( N )
SI unit for mass kilograms ( kg )
SI units for acceleration ( m/s^2 ) or ( m/s/s )
resistance to change in motion (or being at rest) inertia
type of friction that works on stationary objects (at rest) static
type of friction that works on moving objects (in motion) kinetic
the path of motion of any projectile parabolic
force that always causes a downward acceleration gravity
when only force acting on falling object is gravity free fall
constant max speed on projectile when gravity and air resistance is equal terminal velocity
this says that for every force there is an equal and opposite force Newton's 3rd law of motion
this says that an object in motion will stay in motion until acted on by a net force Newton's 1st law of motion
the amount of matter an object has mass
measure of gravity's pull on an objects matter weight (W)
quantity that is magnitude only scalar (ex. speed, mass and weight)
quantity that is both magnitude and direction vector (ex. acceleration , velocity, force)
upward force when object is on a surface normal
upward force when object is mid-air air resistance
force when object is being pulled by a cable or string tension
force that acts on object from a distance field force
force that must touch the object it is acting on contact force
friction always acts in this direction to slow down or stop motion opposite
sum of all the forces acting on an object net force
Created by: cadetjt
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