Name:______________________________Class:__________________ Date:__________________
Assessment
Chapter Test A
Teacher Notes and Answers
The Science of Physics
CHAPTER TEST A (GENERAL)
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20. b
21. Answers may vary. Sample answer:
Mechanics studies the interactions of large
objects, while quantum mechanics studies
the behavior of subatomic (or very small)
particles.
22. meter (m), kilogram (kg), and second (s)
23. Solution
b
c
b
b
a
c
d
c
b
c
d
a
d
c
d
21.4 + 15 + 17.17 + 4.003 = 57.573
Answer rounds to 58 and is written as
5.8 101 in scientific notation.
b
c
a
c
10 4 dm (92 10 3 km) =
1 km 92 10 7 dm = 9.2 10 8 dm
24. the same dimensions (or units)
25. Solution
(8.86 + 1.0 10 3 )
(3.610 10 3 )
(8.86)
(3.610 10 3 )
=
= 2.45 103
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
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1
Chapter Tests
Name:______________________________Class:__________________ Date:__________________
Assessment
The Science of Physics
Chapter Test A
MULTIPLE CHOICE
In the space provided, write the letter of the term or phrase that best completes
each statement or best answers each question.
_____ 1. Which of the following is an area of physics that studies motion and its
causes?
a. thermodynamics
c. quantum mechanics
b. mechanics
d. optics
_____ 2. Listening to your favorite radio station involves which area of physics?
a. optics
b. thermodynamics
c. vibrations and wave phenomena
d. relativity
_____ 3. A baker makes a loaf of bread. Identify the area of physics that this
involves.
a. optics
c. mechanics
b. thermodynamics
d. relativity
_____ 4. According to the scientific method, why does a physicist make
observations and collect data?
a. to decide which parts of a problem are important
b. to ask a question
c. to make an interpretation
d. to solve all problems
_____ 5. In the steps of the scientific method, what is the next step after
formulating and objectively testing hypotheses?
a. interpreting results
b. stating conclusions
c. conducting experiments
d. making observations and collecting data
_____ 6. Why do physicists use models?
a. to explain the complex features of simple phenomena
b. to describe all aspects of a phenomenon
c. to explain the basic features of complex phenomena
d. to describe all of reality
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
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Chapter Tests
Name:______________________________Class:__________________ Date:__________________
Chapter Test A continued
_____ 7. Which statement about models is not correct?
a. Models describe only part of reality.
b. Models help build hypotheses.
c. Models help guide experimental design.
d. Models manipulate a single variable or factor in an experiment.
_____ 8. What two dimensions, in addition to mass, are commonly used by
physicists to derive additional measurements?
a. length and width
c. length and time
b. area and mass
d. velocity and time
_____ 9. The symbol mm represents a
a. micrometer.
b. millimeter.
c. megameter.
d. manometer.
_____ 10. The SI base unit used to measure mass is the
a. meter.
c. kilogram.
b. second.
d. liter.
_____ 11. The SI base unit for time is
a. 1 day.
b. 1 hour.
c. 1 minute.
d. 1 second.
_____ 12. A lack of precision in scientific measurements typically arises from
a. limitations of the measuring instrument.
b. human error.
c. lack of calibration.
d. too many significant figures.
_____ 13. How does a scientist reduce the frequency of human error and
minimize a lack of accuracy?
a. Take repeated measurements.
b. Use the same method of measurement.
c. Maintain instruments in good working order.
d. all of the above
_____ 14. Five darts strike near the center of a target. The dart thrower is
a. accurate.
c. both accurate and precise.
b. precise.
d. neither accurate nor precise.
_____ 15. Calculate the following, and express the answer in scientific notation
with the correct number of significant figures:
21.4 + 15 + 17.17 + 4.003
a. 5.7573 101
c. 5.75 101
b. 5.757 101
d. 5.8 101
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
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Chapter Tests
Name:______________________________Class:__________________ Date:__________________
Chapter Test A continued
Hour
Temperature (°C)
1:00
30.0
2:00
29.0
3:00
28.0
4:00
27.5
5:00
27.0
6:00
25.0
_____ 16. A weather balloon records the temperature every hour. From the table
above, the temperature
a. increases.
c. remains constant.
b. decreases.
d. decreases and then increases.
_____ 17. The time required to make a trip of 100.0 km is measured at various
speeds. From the graph above, what speed will allow the trip to be
made in 2 hours?
a. 20.0 km/h
c. 50.0 km/h
b. 40.0 km/h
d. 90.0 km/h
_____ 18. The Greek letter indicates a(n)
a. difference or change.
b. sum or total.
c. direct proportion.
d. inverse proportion.
_____ 19. The most appropriate SI unit for measuring the length of an automobile
is the
a. micron.
c. meter.
b. kilometer.
d. nanometer.
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
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Chapter Tests
Name:______________________________Class:__________________ Date:__________________
Chapter Test A continued
_____ 20. Estimate the order of magnitude of the length of a football field.
a. 101 m
c. 104 m
d. 106 m
b. 102 m
SHORT ANSWER
21. Two areas within physics are mechanics and quantum mechanics. Distinguish
between these two areas.
_________________________________________________________________
_________________________________________________________________
22. What are the SI base units for length, mass, and time?
_________________________________________________________________
23. Convert 92 103 km to decimeters using scientific notation.
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
24. What must quantities have before they can be added or subtracted?
_________________________________________________________________
_________________________________________________________________
PROBLEM
25. Calculate the following, expressing the answer in scientific notation with the
correct number of significant figures: (8.86 + 1.0 103) ÷ 3.610 103
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
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Chapter Tests