Grace
Fought
Along
Side
Nancy
To
Evict
Mad
Boys
Gravity
Friction
Applied
Normal
Tension
Electrical
Magnetic
Buoyant
Net force
Left over force
Gravity
Pull between two objects with mass
-Typically on earth
Applied
A push or pull from a living thing
Friction
Push between two surfaces, allows parallel
-when there’s FRICTION theres NORMAL
Normal
Always directed away from the surface
-Two forces in contact
Tension
Always a pull
-String, rope, chain, or wire
Spring
A push or pull that is elastic
-Coil or wire
Buoyant
A push upward (toward the top) by a fluid
-gasses or helium
Magnetic
Push or pull between magnetic objects
-north or south
Electrical
Push or pull between charged objects
-Positive or negative
Mass vs. Weight
Mass = the amount of stuff that makes up an object (kg)
-Always the same no matter what your location is
Weight = force of gravity between and a planetary object (N)
-Depending your location the force will change
Scales
Measure the normal or spring force
-NOT the weight
Force diagram ONLY show…
The direction of acceleration
NOT velocity (motion)
Mass
The amount of stuff that makes up an object
-measured in kg
Weight
Another name for force of gravity between an object and a planetary body
-measured in N
Scales
They DO NOT measure weight!
-scales measure the normal force/spring forces
Net force & acceleration are…
Directly proportional
(Hooke’s Law) elasticity
Property that causes a material to go back to its original form
Compression elasticity vs. Expression elasticity
Compression = squishy
Expression =stretchy
Newtons 1st law
What causes motion to change
Inertia
The tendency for an object to resist a change in motion
-The amount of mass measures an objects inertia
Newtons 2nd law
The more force = more acceleration
