Across
- 6. the rate at which velocity changes; calculated by diving change in velocity by the time
- 7. speed in a given direction
- 9. the effect of a force acting on an object over time. Calculated by multiplying mass by the change in velocity
- 12. a result of a force moving an object a certain distance
- 13. the constant velocity of a falling object when the force of air resistance equals the force of gravity
- 16. the acceleration of an object is equal to the net force acting on it divided by the objects mass
- 18. the two equal but opposite forces that exist when two systems act on each other
- 19. two equal forced acting in opposite directions on an object
- 21. the state of motion of an object does not change as long as the net force acting on the objects is zero
- 23. a force which is applied to an object by a person or another object
- 24. two or more forces that are not equal and opposite of one another; can cause change in motion
Down
- 1. whenever one object exerts a force on a second object, the second object exerts an equal and opposite force on the first object
- 2. a push or pull that acts on an object
- 3. speed and direction of an object at a particular instant
- 4. the tendency of an object to resist a change in its motion
- 5. law stating that the total momentum of a group of objects stays the same unless outside forces act on the objects
- 8. distance and direction of an objects change in position from the starting point
- 10. the product of an objects mass and velocity
- 11. a physical quantity that has magnitude but no direction
- 14. the state of an object when not it is not in motion
- 15. a physical quantity that has both magnitude and direction
- 17. a system of objects that are not moving with respect to one another
- 20. the rate which work is done
- 22. the motion of an object toward the earth because of gravity