Physics Crossword

4. forces acting on an object within a system that do not cancel each other out or add up to zero
9. forces acting on an object within a system that cancel each other out, providing a
10. a force that opposes relative motion between systems in contact
11. regularly interacting or interdependent group of items forming a unified whole
14. a push or pull between two objects
15. a physical phenomenon where masses exert a pull on each other from a distance
17. a vector quantity that is a measurement of the change in motion of an object (speeding up, slowing down, or changing direction

1. an act, process, or instance of changing position or location
2. force acting on an object such as pushes and pulls
3. the tendency of an object to resist a change in motion
5. a scalar quantity (number, magnitude) that is an instantaneous measurement of the rate of change in the motion of an object, calculated when the distance traveled is divided by the time taken
6. the sum of all the forces acting on an object within a system; includes both magnitude and direction
7. the energy caused by the motion of objects or particles within a system
8. the smallest unit of a substance or material
12. the measure of the average kinetic energy of the particles within a substance; a measure of heat energy; measured in degrees Celsius
13. the amount of matter in a substance, measured in grams or kilograms
16. a type of energy characterized by fields of force