| A | B |
|---|
| The English unit of force equal to 4.448 newtons | pound |
| The metric unit of force needed to accelerate a 1 kg mass at 1 m/s2 | newton |
| A force that comes from the pulling of Earth's gravity | weight |
| The force created when you squeeze a spring | compression |
| A pulling force carried by a rope | tension |
| A force that resists the motion of objects or surfaces over each other | friction |
| A frictional force resisting motion as one surface slides over another | sliding |
| A frictional force between two non moving surfaces that resists motion | static |
| A zero net force is established when all forces are | balanced |
| When all forces on an object are balanced, the object is in | equilibrium |
| The force a surface exerts on an object pressing on it is called | normal |
| A diagram representing all forces acting on an object | free-body diagram |
| The sum of all forces acting on an object | net force |
