Across
- 1. the rate at which the velocity is changing
- 3. the SI unit of force
- 5. an arrow that represents the magnitude and direction of a quantity
- 6. an object moving under the influence of gravity only
- 8. a force that acts between materials that touch as they move
- 10. mass x velocity
- 11. the quantity of matter
- 13. one of the pair of forces described in newton's 3rd law
- 15. the number of rotations per unit of time
- 17. when an object turns about an internal axis
- 20. quantity force x time interval
- 21. resisting a change of motion
- 23. friction or drag that acts on an object moving through air
- 25. when an object turns about an external axis
- 26. speed in a given direction
- 27. a push or a pull
- 28. produced when a force is applied with leverage
Down
- 2. where all the mass of an object is concentrated
- 4. an object will remain upright if the center of gravity is above the area of support
- 7. determining the components of a vector
- 9. the speed of something moving along a circular path
- 11. a state where no physical changes occur
- 12. how we measure pressure
- 14. measurement of work and force
- 16. straight line that an object rotates around
- 18. how fast an object is moving
- 19. an outward force on a rotating or revolving body
- 22. the force of gravity on an object
- 24. the rate that work is done