# Physics

##### Across
1. 3. SI base unit for mass.
2. 4. A branch of science that involves the study of matter, energy, and how they are related.
3. 5. In a linear relationship, there is a ________ rate of change between the two variables.
4. 12. The relationship when the two variables varies linearly with each other or the two variables are directly proportional.
5. 16. The graph of an inverse relationship is called __________ .
6. 17. A quantity that has both magnitude and direction.
7. 18. A comparison between an unknown quantity and a standard.
8. 19. The _________ of the position vector is proportional to the distance of the object from the origin.
9. 20. This relationship exists when one variable depends on the square of another.
10. 21. The rate of change in position.
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1. 1. Describes how well the results of a measurement agree with the real value.
2. 2. The change in position from initial to final position.
3. 6. All nonzero digits in a measurement are __________.
4. 7. Any factor that might affect the behavior of an experimental setup is called a(n) ________.
5. 8. A possible explanation for a problem using what you know and have observed.
6. 9. A quantity that has only magnitude without any direction.
7. 10. The rate of change in velocity.
8. 11. This is the variable that is manipulated during an investigation.
9. 13. This relationship exists when one variable depends on the inverse of the other.
10. 14. This is the ratio of the vertical change to the horizontal change between two data points in a linear graph.
11. 15. These are used when changing SI base units by powers of 10.