Chapter 2: Forces Flashcards
Newton
A strength of force that is measured in the SI Unit
Force
Push or pull
Net Force
The combination of all the forces on an object
Friction
Two surfaces exert on each other when they rub against each other
Sliding Friction
Occurs when two solid surfaces slide over each other
Static Friction
Acts between objects that aren’t moving
Fluid Friction
Occurs when a solid object moves through a fluid
Rolling Friction
When an object rolls across the surface
Gravity
A force that pulls objects toward each other.
Mass
A measure of the amount of matter in an object
Weight
A measure of the force of gravity on an object
Inertia
Resistance to change in motion
Momentum
A characteristic of a moving object that is related to the mass and velocity of an object
Law of conservation of momentum
A law that states that in the absence of outside forces like friction
Free fall
When the only force acting on an object is gravity
