Across
- 3. A force that opposes motion between two surfaces that are in contact.
- 5. The overall force acting on an object, found by adding all the individual forces together (taking direction into account).
- 8. The force exerted by a surface perpendicular to an object resting on it.
- 9. A region of space where a force (like gravity or magnetism) can be detected and acts on objects with certain properties.
- 11. A state in which all forces acting on an object are balanced, so the object stays at rest or moves with constant velocity.
- 13. The rate at which an object’s velocity changes with time.
- 15. A quantity that has both magnitude (size) and direction.
- 16. A measure of the amount of matter in an object; it also measures an object’s resistance to acceleration.
Down
- 1. A single vector that represents the combined effect of two or more vectors.
- 2. The force of gravity acting on an object’s mass.
- 4. The point in an object or system where its mass is evenly balanced in all directions; it acts as if all mass is concentrated there.
- 6. A sketch that shows all the forces acting on a single object.
- 7. The distance traveled divided by the time taken; a measure of how fast something moves.
- 10. A push or a pull that can cause an object to accelerate.
- 12. The SI unit of force; one newton is the force needed to accelerate a 1 kg mass by 1 m/s².
- 14. The tendency of an object to resist a change in its motion.