Across
- 2. reaction pair A pair of objects that interact to produce a force on each other of equal magnitude but of opposite direction
- 4. A set of connected things or parts forming a complex whole
- 5. Strength or energy as an attribute of physical action or movement
- 6. To hold (a property) constant during an interaction or process
- 9. A driving or motivating force
- 12. A quantity having direction as well as magnitude, especially as determining the position of one point in space relative to another
- 14. collision A collision process whereby part of the total kinetic energy of the system is converted into a different form of energy, such as radiant energy
- 15. A body's relative mass or the quantity of matter contained by it
- 16. Increase in the rate or speed of something
- 18. A property of matter by which it retains its state of rest or its velocity along a straight line so long as it is not acted upon by an external force
- 21. of vector Length of the vector
- 22. The speed of something in a given direction
- 23. A coherent, typically large body of matter with no definite shape
Down
- 1. collision A collision in which the total kinetic energy of the colliding bodies or particles is the same after the collision as it was before
- 3. fall The ideal falling motion of something subject only to a gravitational field
- 4. The rate at which someone or something is able to move or operate
- 7. notation A way of writing very large or very small numbers by multiplying power of 10 and a number between 1 and 10
- 8. force Overall force acting on an object
- 10. field strength A field of force surrounding a body of finite mass
- 11. The resistance that one surface or object encounters when moving over another
- 13. Of a quantity having only magnitude, not direction
- 17. A state in which opposing forces or influences are balanced
- 19. force Force exerted upon an object that is in touch with another stable object
- 20. The quantity of motion of a moving body, measured as a product of its mass and velocity