PAX Science
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Avg score: 68% • Most missed: “Which of these organ systems does NOT provide for the excretion of substances?”
PAX Science
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25 Questions

1. one complete repetition of a periodic event

2. wheel and axle

3. longitudinal waves

4. light waves are made up of streams of _______.

5. Cicero and Wozniak used young rats in their experiment instead of older rats because young rats are

6. Which of these units is associated with magnitude, but not direction?

7. Water freezes at 0 °C. On the Kelvin temperature scale, this is equivalent to

8. The boiling point of liquid nitrogen at one atmosphere pressure is 77 K. This temperature is equivalent to.

9. resistor

10. interference

11. parallel circuit

12. One object may lose momentum, but the momentum lost by one object is _________ by the other.

13. potential difference

14. A lab technician has the choice of four different enzymes to use in an experiment that will run at 25 °C. The optimal temperatures of enzymes using the Kelvin scale are: Enzyme A: 273 K, Enzyme B: 298 K, Enzyme C: 310 K, Enzyme D: 325 K. Which enzyme would be the best to use in this experiment?

15. phase change

16. Enzymes that are involved in biochemical reactions are organic

17. Substance Y is soluble only in nonpolar solvents and does not conduct electricity, either in the solid or liquid phases. Y is most probably

18. periodic wave

19. Convex Lens

20. fulcrum

21. A lens that focuses distant light to a single point is known as a

22. In varieties of matter, the term heterogeneous may be applied to

23. Which of these single instruments may be used to measure the current flowing through a circuit?

24. A person who was in an auto accident has formed a blood clot at the site of the injury. One event that can lead to formation of a blood clot is that

25. A magician rapidly pulls a tablecloth from a table, leaving the dishes undisturbed. Which of these principles of physics explains this 'trick'?

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