Across
- 3. the force of gravity of an object at the surface of a planet
- 6. the force that attracts something toward the center of the earth
- 7. the force applied in one direction is greater than the force applied in the opposite direction
- 8. point representing the mean position of the matter in a body
- 12. forces that are equal in size and opposite in direction
- 15. the force that one surface exerts on another when the two surfaces rub against each other
- 16. energy that an object has due to its motion
- 17. the distance an object travels per unit of time
- 20. stored energy that results from the position or shape of an object
- 21. speed in a given direction
Down
- 1. the tendency of an object to resist any change in its motion
- 2. unit of measurement for momentum
- 4. moving from one position to another
- 5. the space between two things
- 9. an imaginary line around which an object rotates
- 10. strength or energy as an attribute of physical action or movement
- 11. the product of an object's mass and velocity
- 13. a change in velocity
- 14. the resistance that one surface or object encounters when moving over another
- 18. the state in which one object's distance from another is changing
- 19. the quantity of matter in a physical body