Name that Force
Units for Properties
Newton's Laws
FBD's
Pick an Equation
100
Force between any two masses (usually the Earth is one) .....also known as weight.
What is force of gravity (Fg)?
100
kg
What is mass?
100
Lazy law --- objects keep doing what they are already doing.
What is Newton's 1st Law (Inertia)?
100
Direction force arrows in FBDs point relative to the object being considered
What is outward?
100
Equation you might use given distance and time to find velocity.
What is
v = (Deltax)/t
200
Restorative force causing an elastic object to return to its original shape.
What is spring force (Fs)?
200
m/s
What is velocity?
200
Revenge Law --- for every action there is an equal and opposite reaction.
What is Newton's 3rd Law?
200
When all forces cancel out on a FBD, this is true of the acceleration and net force.
What is both acceleration and Fnet have a value of 0?
200
How to find the mass of an object when you know it's weight.
What is Fg = mg ? or rearranged for mass m = Fg/g
300
Often neglected force due to moving gases (air) out of the way of a moving object.
What is air resistance (Fair)?
300
m/s/s
What is acceleration?
300
Fnet = manet
What is Newton's 2nd Law?
300
Direction of Fnet and acceleration in image to right 
What is "to the right"?
300
Net Force for the FBD shown Below
What is Fnet = Fright - Fleft or
Fnet = 20N - 3 N to the right
400
When a taught rope is attached to an two object and transfers force from one object to the other, this force is being used.
What is tension (Ften or T)?
400
unit of weight
What is a Newton? (remember weight is a force)
400
The force that remains after all opposing forces have been canceled out. Also = mass x acceleration.
What is the net force? (Fnet or
SigmaF
400
The term that describes the speed of the skydiver in this image.
What is terminal velocity?
400
How to find the coefficient of friction
What is mu = Ff/FN?
500
Perpendicular Force out of a surface keeping an object from moving through that surface.
What is normal Force (FN)?
500
kg*m/ s2
What is Force? (this is another term way of writing a Newton)
500
The reason that Newton's third law action/reaction force pairs do not cancel out and can still cause accelerations and net forces on an object.
What is because the action and reaction forces act on different objects?
500
The direction this object is moving?
What is to the right?
500
Given the FBD left .... the equation(s) you would need to determine the coefficient of friction in the problem (looking for at least two of the three needed)
What are Fg = mg (or rearranged to find m = Fg/g), Fnet = ma (or recognize that a = 0m/s2 means Fnet =0), Fnet = Fapp - Ff (or Ff = Fapp), and finally Ff = mu FN or ( mu =Ff/FN)