Group 1
The interaction between objects due to direct contact with each other
Contact Force
The interaction between objects that are separated by some distance
The downward force experienced by objects resulting from their gravitational attraction to Earth
A spring’s resistance to deformation
Spring Constant
A point representing the mean position of an object’s matter
Center of Mass
The pulling force an object exerts along its length due to being stretched
Tension
A noncontact interaction between two objects having electric charge
Electric Force
The force between two surfaces in contact
Surface Force
The perpendicular component of the surface force
Normal
The parallel component of the surface force
Friction
The noncontact attractive interaction between two objects having mass; also known as gravity
Gravitational Force
A change in shape due to the application of a force
Deformation
A law that states that the size of a spring’s deformation is proportional to the applied force; FSO = −kΔL
Hooke's Law
A noncontact interaction between two objects having electric charge
Electric Force
A model of a solid that has atoms connected to their neighbors by springs
Einstein Solid
The friction between surfaces that are not moving relative to each other
Static Friction
An object’s total quantity of motion, defined as the product of its mass and velocity; also known as linear momentum
Momentum
The friction between surfaces moving relative to each other
Kinetic Friction
The study of balanced forces on objects or systems that are at rest
Statics
The proportion of resistance two surfaces have to motion with respect to the magnitude of the normal component of the surface force
Coefficient of Friction
Any force that causes an object to move in a circular path
Centripetal Force
The two related action-reaction forces described by Newton’s third law of motion
Third-Law Pair
A law that states that objects remain at rest or continue with uniform motion in a straight line unless some action causes a change in motion
Newtons first law of motion
A measure of an object’s inertia measured in the SI unit kilograms (kg)
Mass
Whatever parts of the universe you are interested in studying
System