From the list of words above, choose the one that corresponds to the definitions below.

1. Quantities in physics, such as mass, volume, and speed which are fully described by a magnitude alone.  ______________________________

2. The horizontal axis on a graph on which the independent variable is plotted.    ______________________________

3. A vector quantity which describes the rate at which an object changes its position.  Also referred to as “speed with direction.”   ______________________________

4. A scalar quantity which refers to “how much ground an object has covered” during its motion ________________________

5. The rate at which an object changes its velocity, meaning there is a change in speed, direction, or both.       ______________________________

6. A point, assumed to be stationary, used to describe motion.    ______________________________

7. Refers to the duration of an action.   ______________________________

8.  The vertical axis on a graph on which the dependent variable is plotted.    ______________________________

9.  A scalar quantity which refers to “how fast an object is moving.”       _____________________________

10. Refers to the way position changes relative to a starting point. May be indicated by the terms: north, south, positive, negative, up, or down. _____________________________

11. A vector quantity which refers to how far out of place an object is, or the object’s change in position.  _____________________________

12.  A quantity that has magnitude and direction.   _____________________________

13.   Refers to where an object is.     _____________________________

14. The degree of exactness with which an operation is performed or a measurement stated. __________________________________

15. Freedom from mistake or error; degree of conformity of a measure to a standard or a true value ______________________________

16. The accepted measurement system of the scientific community, based on the meter, the kilogram, and the second. ______________________________

17. Standard system of measurement used in daily activities in the United States. ______________________________

18. The speed of an object at specific moment.  ______________________________

19. The factor in an experiment that the researcher chooses to vary at specific intervals; is plotted on the x-axis.
_________________________

20. The total distance traveled divided by the total time of travel.  _____________________________

21. Refers to the degree of inclination or steepness of a line. _____________________________

22.  The factor whose value changes as the result of a change in the independent variable and is plotted on the y-axis.     _____________________________

23. Refers to size and is expressed as a numerical value.       _____________________________

24. Total displacement divided by the time interval. __________________________

25.  The velocity of an object at a specific moment.  _____________________________

26.  Type of motion that describes an object that is not accelerating.      _____________________________

27.  A speed that does not change, such as a steady speed.  _____________________________

28.  Acceleration of an object at a particular moment. ______________________________

29.  Type of motion that describes the steady change in velocity over time.     ______________________________

30. A simplified description of a physical system intended to capture the essential aspects of the system in a sufficiently simple form. A description or analogy used to help visualize something (as an atom) that cannot be directly observed ____________________________

31. An assumption to be tested; a statement of a problem to be solved, expressed as a question. ___________________________________

32. A plausible or scientifically acceptable general principle or body of principles offered to explain phenomena _____________________________

33. A specific measure of quantity (as of length, time, heat, or value) used as a standard of measurement. ______________________________

34. An act of recognizing and noting a fact or occurrence; often involving measurement with instruments. ______________________________

35. An operation carried out under controlled conditions in order to discover an unknown effect or law, to test or establish a hypothesis, or to illustrate a known law. ______________________________

36. A statement of an order or relation of phenomena that so far as is known is invariable under the given conditions. ______________________________

37. Set up and established by authority as a rule for the measure of quantity, weight, extent, value, or quality. ______________________________

38. Used to check, test, or verify experiments; usually not itself manipulated during the experiment. ______________________________

39. Something invariable or unchanging. ______________________________

40. A falling object which experiences no friction is in this type of motion. ______________________________