Across
- 3. not moving relative to a reference point
- 7. forces acting on an object that are equal in strength and opposite in direction, resulting in a net force of zero
- 8. motion in which an object changes direction and follows a circular or curved trajectory
- 11. a single object shown in a force diagram with all forces acting on it
- 13. the tendency of an object to resist changes in its motion
- 14. how fast an object moves
- 16. the force that opposes motion between two surfaces that are sliding past each other
- 19. the way an object is moving
- 22. a net force that is not equal to zero and causes a change in motion
- 23. the support force exerted by a surface on an object in contact with it
- 25. the curved path of an object moving around a center due to a force acting toward that center
- 26. a push or pull that can change an object’s motion
- 27. a change in position of an object over time
- 28. the total force acting on an object after all forces are added together
Down
- 1. a drawing that uses arrows to represent the forces acting on an object
- 2. the strength or size of a force
- 4. a force that opposes motion when an object moves through a fluid such as air or water
- 5. speed in a given direction
- 6. the force of attraction between Earth and objects with mass
- 9. forces acting on an object that do not cancel out, resulting in a nonzero net force
- 10. the location of an object relative to a reference point
- 12. a quantity that has both magnitude and direction
- 15. a force exerted by a stretched or compressed object that tries to return to its original shape
- 17. a place or object used for comparison to determine if something is moving
- 18. a force that is exerted on an object by a person or another object
- 20. a fixed point or object used to determine an object’s position and motion
- 21. motion described based on the observer’s frame of reference
- 24. a force that opposes motion between two surfaces in contact