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Tools & Methods of Scientific Measurement Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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Question 1 1.

The area of a rectangle can be found by multiplying its length by its width. What is the area of a rectangle that is 5.6 cm in length and 9.24 cm wide?

Report your answer with the correct number of significant figures.

Question 2 2. If you add 50.0 mL of water to a beaker containing 22 mL of water, then how much water do you have in the beaker?

Question 3 3. How many significant figures are in 54,050?

Question 4 4.

An empty container has a mass of 62.000 grams. You fill it with 24.6 mL of a liquid. The final mass of the container is 81.34 grams. What is the density of the liquid to the correct number of significant figures?

(density of the liquid = mass of the liquid divided by the volume of liquid)

Question 5 5. Which of the following is NOT a benefit of having standard units in science?

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Question 6 6. What is science?

Question 7 7. What is the SI unit of length?

Question 8 8. What is the SI unit of mass?

Question 9 9. You are measuring the volume of a liquid that is 20.31 mL. What are your certain digits in this measurement?

Question 10 10. How many significant figures are in the number 0.220?

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Question 11 11. In the measurement 29.4 cm, what number(s) is the uncertain digit?

Question 12 12. How many significant figures should the product of 1.2 x 1.4592 contain?

Question 13 13. If you are driving at a speed of 55.0 miles per hour, then what is your speed in meters per second? (Hint: 1 mile = 1,600 meters.)

Question 14 14. The density of mercury is 13.6 g/mL. What is its density in lbs/L? (Hint: 1 lb = 0.454 kg)

Question 15 15. Which of the following is a conversion factor?

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Question 16 16. One mole of aluminum atoms has a mass of 27 grams. How many grams are in 9.0 moles of aluminum?

Question 17 17.

You measure the mass of a block five times and get the following values: 0.48 g, 0.51 g, 0.50 g, 0.49 g, 0.50 g

The true mass is known to be 0.60 g. What is the percent error?

Question 18 18. A measure of how closely repeated measurements agree with each other is:

Question 19 19.

You measure the mass of a block five times and get the following values: 0.48 g, 0.51 g, 0.50 g, 0.49 g, 0.50 g

The true mass is known to be 0.60 g. How would you characterize your measurements?

Question 20 20. A measure of how close your measurements are to a true or accepted value of the measured quantity is called:

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Question 21 21. On a screw gauge, where does the final reading come from?

Question 22 22. Which precision measuring tool is used to measure length, has a u-shape, and is often used in electrical engineering?

Question 23 23. If a tool gives you the same measurement over and over again, you can say the tool is a(n):

Question 24 24. Which of the following tools would be used to measure mass?

Question 25 25. What is the point of having units in the sciences?

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Question 26 26. What do we call an SI unit that is created by combining base units using algebra?

Question 27 27. What is SI units shorthand for?

Question 28 28. Which of the following is an example of a unit?

Question 29 29. Simge's guinea pig weighs exactly 560. grams. Which of the following most accurately expresses the weight of Simge's guinea pig in scientific notation?

Question 30 30. What is the SI unit of temperature?

Tools & Methods of Scientific Measurement Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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