Force
Mass
Inertia
Net Force
Acceleration
Units
It's any interaction that, when unopposed, will change the motion of an object. It can be exerted through contact or at a distance.
The standard units for force, mass, and acceleration are Newton (N), kilogram (kg), and meter per second squared (m/s²), respectively.
It's the vector sum of all the forces acting on an object. If it's acting on an object is non-zero, it will accelerate.
Diagrams illustrating acceleration, such as a car speeding up or slowing down, a ball being thrown, or an object falling due to gravity.
It's a measure of the amount of matter in an object. It is a scalar quantity and is typically measured in kilograms (kg).
It's the tendency of an object to resist changes in its motion.