Chapter 1 Pretest
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Transcript of Chapter 1 Pretest
![Page 1: Chapter 1 Pretest](https://reader035.fdocuments.net/reader035/viewer/2022062221/5681301c550346895d9598e6/html5/thumbnails/1.jpg)
Chapter 1 Pretest
![Page 2: Chapter 1 Pretest](https://reader035.fdocuments.net/reader035/viewer/2022062221/5681301c550346895d9598e6/html5/thumbnails/2.jpg)
1. THE STANDARD UNIT OF MASS IS THE: A) GRAM, B) KILOGRAM, C) POUND.
![Page 3: Chapter 1 Pretest](https://reader035.fdocuments.net/reader035/viewer/2022062221/5681301c550346895d9598e6/html5/thumbnails/3.jpg)
1. THE STANDARD UNIT OF MASS IS THE: A) GRAM, B) KILOGRAM, C) POUND.
![Page 4: Chapter 1 Pretest](https://reader035.fdocuments.net/reader035/viewer/2022062221/5681301c550346895d9598e6/html5/thumbnails/4.jpg)
2. ABSOLUTE ERROR IS AN EXPRESSION OF THE: A) ACCURACY OF A MEASUREMENT, B) PRECISION OF A MEASUREMENT.
![Page 5: Chapter 1 Pretest](https://reader035.fdocuments.net/reader035/viewer/2022062221/5681301c550346895d9598e6/html5/thumbnails/5.jpg)
2. ABSOLUTE ERROR IS AN EXPRESSION OF THE: A) ACCURACY OF A MEASUREMENT, B) PRECISION OF A MEASUREMENT.
![Page 6: Chapter 1 Pretest](https://reader035.fdocuments.net/reader035/viewer/2022062221/5681301c550346895d9598e6/html5/thumbnails/6.jpg)
3. WHICH OF THESE MEASUREMENTS DOES NOT HAVE THREE SIGNIFICANT FIGURES: A) 106 000 m, B) 0.00 302 g, C) 320 mL, D) 4.2 X 107 L.
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3. WHICH OF THESE MEASUREMENTS DOES NOT HAVE THREE SIGNIFICANT FIGURES: A) 106 000 m, B) 0.00 302 g, C) 320 mL, D) 4.2 X 107 L.
![Page 8: Chapter 1 Pretest](https://reader035.fdocuments.net/reader035/viewer/2022062221/5681301c550346895d9598e6/html5/thumbnails/8.jpg)
4. MASS IS A MEASURE OF: A) AMOUNT OF SPACE TAKEN UP BY AN OBJECT, B) AMOUNT OF MATTER IN AN OBJECT, C) DENSITY.
![Page 9: Chapter 1 Pretest](https://reader035.fdocuments.net/reader035/viewer/2022062221/5681301c550346895d9598e6/html5/thumbnails/9.jpg)
4. MASS IS A MEASURE OF: A) AMOUNT OF SPACE TAKEN UP BY AN OBJECT, B) AMOUNT OF MATTER IN AN OBJECT, C) DENSITY.
![Page 10: Chapter 1 Pretest](https://reader035.fdocuments.net/reader035/viewer/2022062221/5681301c550346895d9598e6/html5/thumbnails/10.jpg)
5. IN PHYSICS, A SCIENTIFIC LAW IS USUALLY EXPRESSED: A) AS A THEORY, B) BY A MATHEMATICAL EQUATION, C) AS AN OBSERVATION, D) IN WORDS.
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5. IN PHYSICS, A SCIENTIFIC LAW IS USUALLY EXPRESSED: A) AS A THEORY, B) BY A MATHEMATICAL EQUATION, C) AS AN OBSERVATION, D) IN WORDS.
![Page 12: Chapter 1 Pretest](https://reader035.fdocuments.net/reader035/viewer/2022062221/5681301c550346895d9598e6/html5/thumbnails/12.jpg)
6. THE SUM OF 1.044 cm, 50.23 cm, and 7.9 cm is: A) 59 cm, B) 59.2 cm, C) 59.17 cm, D) 59.174 cm.
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6. THE SUM OF 1.044 cm, 50.23 cm, and 7.9 cm is: A) 59 cm, B) 59.2 cm, C) 59.17 cm, D) 59.174 cm.
![Page 14: Chapter 1 Pretest](https://reader035.fdocuments.net/reader035/viewer/2022062221/5681301c550346895d9598e6/html5/thumbnails/14.jpg)
7. AN EQUIVALENT OF 3.40 m is: A) 340 cm, B) 3.40 X 104 mm, C) 3.40 X 109
micrometers, D) 0.0340 km.
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7. AN EQUIVALENT OF 3.40 m is: A) 340 cm, B) 3.40 X 104 mm, C) 3.40 X 109
micrometers, D) 0.0340 km.
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8. THE FORCE NEEDED TO SUPPORT 500 g AT SEA LEVEL IS: A) LESS THAN 1.00 NEWTON, B) BETWEEN 1.00 N AND 5.00 N, C) BETWEEN 5.00 N AND 50.00 N, D) MORE THAN 50.00 N.
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8. THE FORCE NEEDED TO SUPPORT 500 g AT SEA LEVEL IS: A) LESS THAN 1.00 NEWTON, B) BETWEEN 1.00 N AND 5.00 N, C) BETWEEN 5.00 N AND 50.00 N, D) MORE THAN 50.00 N.
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9. THE STANDARD SECOND IS DEFINED BY USING: A) KRYPTON RED-ORANGE LIGHT, B) A METAL BAR, C) CESIUM ATOMS, D) LIGHT WAVES.
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9. THE STANDARD SECOND IS DEFINED BY USING: A) KRYPTON RED-ORANGE LIGHT, B) A METAL BAR, C) CESIUM ATOMS, D) LIGHT WAVES.
![Page 20: Chapter 1 Pretest](https://reader035.fdocuments.net/reader035/viewer/2022062221/5681301c550346895d9598e6/html5/thumbnails/20.jpg)
10. WHICH OF THE FOLLOWING EXPRESSIONS HAS DIFFERENT ORDER OF MAGNITUDE FROM THE OTHERS? A) 336 000, B) 5.76 X 104, C) 500 X 100, D) 200 000 / 5.
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10. WHICH OF THE FOLLOWING EXPRESSIONS HAS DIFFERENT ORDER OF MAGNITUDE FROM THE OTHERS? A) 336 000, B) 5.76 X 104, C) 500 X 100, D) 200 000 / 5.
![Page 22: Chapter 1 Pretest](https://reader035.fdocuments.net/reader035/viewer/2022062221/5681301c550346895d9598e6/html5/thumbnails/22.jpg)
11. 1 dm3 IS NOT EQUAL TO: A) 0.01 kL, B) 1000 mL, C) 1000 cm3.
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11. 1 dm3 IS NOT EQUAL TO: A) 0.01 kL, B) 1000 mL, C) 1000 cm3.
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12. Which of the following is an area of physics that studies motion and its causes?a. thermodynamicsb. mechanicsc. quantum mechanicsd. optics
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12. Which of the following is an area of physics that studies motion and its causes?a. thermodynamicsb. mechanicsc. quantum mechanicsd. optics
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13. The symbols for units of length in order from smallest to largest are: a. m, cm, mm, and km.b. mm, m, cm, and km.c. km, mm, cm, and m.d. mm, cm, m, and km.
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13. The symbols for units of length in order from smallest to largest are: a. m, cm, mm, and km.b. mm, m, cm, and km.c. km, mm, cm, and m.d. mm, cm, m, and km.
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14. The SI base unit used to measure mass is the:a. meterb. second c. kilogram d. liter
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14. The SI base unit used to measure mass is the:a. meterb. second c. kilogram d. liter
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15. If some measurements agree closely with each other but differ widely from the actual value, these measurements are:a. neither precise nor accurateb. accurate but not precisec. acceptable as a new standard of accuracyd. precise but not accurate
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15. If some measurements agree closely with each other but differ widely from the actual value, these measurements are:a. neither precise nor accurateb. accurate but not precisec. acceptable as a new standard of accuracyd. precise but not accurate
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16. What are the basic SI units?
a. meters, kilograms, hoursb. feet, pounds, secondsc. meters, kilograms, secondsd. feet, kilograms, seconds
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16. What are the basic SI units?
a. meters, kilograms, hoursb. feet, pounds, secondsc. meters, kilograms, secondsd. feet, kilograms, seconds
![Page 34: Chapter 1 Pretest](https://reader035.fdocuments.net/reader035/viewer/2022062221/5681301c550346895d9598e6/html5/thumbnails/34.jpg)
1. LIST AND DESCRIBE THE STEPS IN THE SCIENTIFIC METHOD.
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Problem – what is it you want to findResearch – what is already knownHypothesis – your guess at the correct answerExperiment – test your hypothesisConclusions – was your hypothesis correct or incorrect
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3. NAME THE FUNDAMENTAL UNITS USED IN MECHANICS AND TELL, IN GENERAL, HOW EACH IS DEFINED.
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meter – the distance light travels in a tiny fraction of a second.kilogram – the mass of the standard kilogram (the only measure that is still a natural object)second – a certain number of vibrations of a cesium-133 atom
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4. A RECTANGULAR BLOCK IS 0.35 m long, 0.20 m wide, and 0.040 m THICK. WHAT IS ITS VOLUME?
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35 cm x 20 cm x 4 cm
= 2800 cm3
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5. Distinguish between precision and accuracy.
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Accuracy is how close a measurement is to the “right “ answer. Precision is how repeatable the measurement is.
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6. What is the meaning of these symbols in equations: ?
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means “change”
means “summation” (add them up)
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7. What are the seven fundamental units?
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meter for distancekilogram for masssecond for timeampere for currentkelvin for temperaturemole for amount of substancecandela for luminous intensity
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