Across
- 2. the force of gravity acting on an object's mass
- 4. a fluid friction provided by the atmosphere is called air _________
- 8. a quantity with both magnitude and direction
- 10. action and reaction forces happen at the same _______
- 11. product of mass and velocity
- 15. velocity resulting from the balance of air resistance and weight
- 17. any change in an objects state of motion
- 20. measure of the inertia of an object
- 21. every object in the universe _________ every other object in the universe
- 22. if the action is hammer hits nail, the reaction is _____ hits hammer
- 24. an object will stay in motion at the same speed and in the same _________ unless acted upon by an outside force
- 26. a push or a pull
Down
- 1. the force of gravity decreases as the _______ between two objects increases
- 3. unit of force
- 5. mathematical relationship between mass and acceleration
- 6. an object in motion tends to remain in ________
- 7. a force that opposes motion
- 9. an object at rest tends to remain at _________
- 12. this kind of force causes an object to accelerate
- 13. tendency of an object to resist changes in motion
- 14. mathematical relationship between force and acceleration
- 16. when all the forces on an object are balanced the net force is _______
- 18. scientist who coined the term inertia
- 19. force acting downward towards the center of the earth
- 23. overall force acting on an object after all the forces are combined
- 25. when an object exerts a force on a second object, the second object exerts an equal but ________ force on the first object