Across
- 3. An invisible force that pulls objects toward each other.
- 6. The quantity of matter within a given object.
- 7. The rate at which velocity changes with time, in terms of both speed and direction.
- 9. The force that is exerted by one object on one or more other objects.
- 10. The scientific study of the deformation of the rocks that make up the Earth's crust and the forces that produce such deformation
- 11. The push or pull on an object with mass causes it to change its velocity.
- 12. The natural tendency of objects in motion to stay in motion and objects at rest to stay at rest, unless a force causes the velocity to change.
- 13. A vector quantity: it has both magnitude and direction.
- 15. Forces that are not equal in magnitude and may or may not act in the same direction.
Down
- 1. A measurement of speed in a certain direction of motion.
- 2. Forces where the effect of one force is cancelled out by another.
- 4. The force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other.
- 5. The sum of all forces acting on an object in a single plane.
- 8. The SI unit of force. It is equal to the force that would give a mass of one kilogram.
- 14. The state of being stretched tight.