Across
- 4. a force that acts between any two masses
- 5. the overall force acting on an oject after all the forces are combined
- 6. a friction force that acts on rolling objects
- 7. a force that opposes the motion of objects that touch as they move past each other
- 10. the motion of a falling object after it is given an initial forward velocity
- 11. a push or pull on an object
- 13. a powerful force of attraction that acts between neutrons and protons in the nucleus
- 16. the force of gravity acting on an object
- 17. a force associated with charged particles
- 19. the tendency of an object to resist a change in its motion
- 20. the product of an object's mass and its velocity
Down
- 1. a force that opposes the direction of motion of an object as it slides over a surface
- 2. opposes the motion of an object through a fluid
- 3. a measure of the inertia of an object and depends on the amount of matter the object contains
- 8. the constant velocity of a falling object when the force of air resistance equals the force of gravity
- 9. fluid friction acting on an object moving through the air
- 12. the friction force that acts on objects that are not moving
- 14. equal to 1 kilogram-meter per second squared
- 15. an attractive force that acts only over a short range
- 18. a center-directed force that continuously changes the direction of an object to make it move around the center