| A | B |
|---|
| Force | A push or a pull |
| Contact Force | A force that is exerted only when two objects are touching |
| Noncontact Force | A force that one object exerts on another when they are not touching |
| Net Force | Combination of all the forces acting on an object |
| Unbalanced Force | When the net force on an object is not zero |
| Balanced Force | When the net force on an object is zero |
| Gravity | Attractive force that exists between all objects that have mass |
| Weight | Measure of gravitational force exerted on an object |
| Friction | A force that opposes the movement between two surfaces in contact |
| Elastic Force | Force exerted by a material when it is stretched or compressed |
| Tension Force | Pulling force applied to an object that can make the object stretch |
| Compression Force | A squeezing force applied to an object that can make an object shrink |
| Centripetal Force | The force that is perpendicular to the velocity and toward the center of the circle |
| Buoyant Force | The upward force on an object in a fluid exerted by the surrounding fluid |
