Physical crossword

2. / The influence that produces a change in a physical quantity.
6. / Distance travelled per unit time.
7. / The property created by the space between two objects.
10. / The property created by the space between two objects and have direction.
11. / The standard unit of energy.
13. potential energy / An object can store energy as the result of its position.
17. / The resistance when a body is moved in contact with another.
18. / A rate of increase of velocity.
20. energy / The mechanical energy that done by virtue of its position.
21. / The capacity of a physical system to do work.

1. / The force used in pushing.
3. potential energy / Potential energy stored as a result of deformation of an elastic object.
4. / The vertical force exerted by a mass as a result of gravity
5. / A rate of decrease of velocity.
8. energy / The mechanical energy that done by virtue of its motion.
9. / The tendency to float in water or other liquid.
12. / The state or quality of being efficient.
14. / Distance travelled per unit time and has direction.
15. / The transfer from one physical system to another.
16. / The tendency of a body to maintain is state of rest or uniform motion unless acted upon by an external force.
19. / The rate of doing work.