Chapter 1 Pretest

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Chapter 1 Pretest
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1. THE STANDARD UNIT OF MASS IS THE A) GRAM,
B) KILOGRAM, C) POUND.
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1. THE STANDARD UNIT OF MASS IS THE A) GRAM,
B) KILOGRAM, C) POUND.
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2. ABSOLUTE ERROR IS AN EXPRESSION OF THE A)
ACCURACY OF A MEASUREMENT, B) PRECISION OF A
MEASUREMENT.
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2. ABSOLUTE ERROR IS AN EXPRESSION OF THE A)
ACCURACY OF A MEASUREMENT, B) PRECISION OF A
MEASUREMENT.
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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.
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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.
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4. MASS IS A MEASURE OF A) AMOUNT OF SPACE
TAKEN UP BY AN OBJECT, B) AMOUNT OF MATTER IN
AN OBJECT, C) DENSITY.
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4. MASS IS A MEASURE OF A) AMOUNT OF SPACE
TAKEN UP BY AN OBJECT, B) AMOUNT OF MATTER IN
AN OBJECT, C) DENSITY.
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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.
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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.
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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.
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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.
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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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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.
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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.
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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.
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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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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.
thermodynamics b. mechanics c. quantum
mechanics d. optics
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12. Which of the following is an area of physics
that studies motion and its causes?a.
thermodynamics b. mechanics c. quantum
mechanics d. 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
thea. meter b. second c. kilogram d.
liter
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14. The SI base unit used to measure mass is
thea. meter b. 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 area. neither precise nor
accurateb. accurate but not precisec.
acceptable as a new standard of accuracy d.
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 area. neither precise nor
accurateb. accurate but not precisec.
acceptable as a new standard of accuracy d.
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
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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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