Multiple Guess!!Select the best answer for each question or
problem.


1.

How is 0.00069 written in
scientific notation?
a.  69 ´ 10^{–5}  b.  6.9 ´ 10^{4}  c.  0.69 ´
10^{–3}  d.  6.9 ´
10^{–4} 


2.

Which of the following
conversion factors would you use to change 18 kilometers to meters?
a.  1000 m/1
km  c.  100 m/1
km  b.  1 km/1000
m  d.  1 km/100 m 


3.

Timers at a swim meet used four
different clocks to time an event. Which recorded time is the most precise?
a.  55 s  b.  55.2 s  c.  55.25 s  d.  55.254 s 


4.

A beaker contains 0.32 L of
water. What is the volume of this water in milliliters?
a.  320 mL  b.  3.2 mL  c.  32 mL  d.  0.32
mL 


5.

The radius of Earth is 6 370
000 m. Express this measurement in km in scientific notation with the correct number of significant
digits.


6.

Three values were obtained for
the mass of a metal bar: 8.83 g; 8.84 g; 8.82 g. The known mass is 10.68 g. The values
are
a.  accurate.  c.  both accurate and precise.  b.  precise.  d.  neither accurate nor precise. 


7.

Calculate the following, and
express the answer in scientific notation with the correct number of significant figures: 21.4 + 15 +
17.17 + 4.003


8.

Calculate the following, and
express the answer in scientific notation with the correct number of significant figures: 10.5
´ 8.8 ´ 3.14
a.  2900  b.  290.136  c.   d.  290 





9.

Which best describes this
graphical relationship?
a.  direct  b.  indirect  c.  inverse  d.  impossible 





10.

Which best describes this
graphical relationship?
a.  impossible  b.  inverse  c.  indirect  d.  direct 


11.

Which is the correct
measurement for location marked by the arrow?


12.

The accepted value is 29.35.
Which correctly describes this student’s experimental data?
Trial  Measurement  1  29.48  2  28.97  3  29.27   
a.  accurate but not
precise  c.  both accurate and
precise  b.  precise but not accurate  d.  neither accurate nor precise 


13.

The accepted value is 1.43.
Which correctly describes this student’s experimental data?
Trial  Measurement  1  1.29  2  1.93  3  0.88   
a.  accurate but not
precise  c.  both accurate and
precise  b.  precise but not accurate  d.  neither accurate nor precise 


14.

Which value has only 4
significant digits?
a.  6.930  b.  0.0450  c.  8450  d.  0.392 


15.

Which is the sum of these
values, to the appropriate number of significant digits? 17.358 + 3.502 + 20.14 =
a.  41  b.  41.00  c.  41.000  d.  41.0 


16.

Which is the product of these
numbers, to the appropriate number of significant digits? 56.2 ´ 9.2057 =
a.  517  b.  517.4  c.  517.36  d.  517.00 


17.

How many significant digits are
in the value 530,405,000?


18.

How many significant digits are
in the value 0.0050340?


19.

How many minutes are in 1
week?
a.  168 min  b.  1440 min  c.  10 080 min  d.  100 800
min 


20.

If repeated measurements agree
closely but differ widely from the accepted value, these measurements are
a.  neither precise nor
accurate.  b.  accurate, but not precise.  c.  both precise and accurate.  d.  precise, but not accurate. 


21.

The measurement 0.035550 g
rounded off to two significant figures would be
a.  0.03 g.  b.  0.35 g.  c.  0.036 g.  d.  3.5 ´ 10^{2}
g. 


22.

Which of these measurements has
been expressed to three significant figures?
a.  0.052 g  b.  0.202 g  c.  3.065 g  d.  500
g 


23.

Which of these measurements has
been expressed to four significant figures?
a.  0.0020
mm  b.  0.0402
mm  c.  30.00
mm  d.  402.10
mm 


24.

When 64.4 is divided by 2.00,
the correct number of significant figures in the result is


25.

How is the measurement 0.000
065 cm written in scientific notation?
a.  65 ´ 10^{–6} cm  c.  6.5 ´ 10^{–6} cm  b.  6.5 ´ 10^{–5}
cm  d.  6.5 ´ 10^{–4} cm 


26.

The speed of light is 300 000
km/s. In scientific notation, this speed is written to one significant figure as
a.  3 ´ 10^{5} km/s.  c.  3. ´ 10^{6} km/s.  b.  3.0 ´ 10^{5}
km/s.  d.  3.0 ´ 10^{6} km/s. 


27.

The closeness of a measurement
to its true value is a measure of its ____.
a.  precision  b.  accuracy  c.  reproducibility  d.  usefulness 


28.

In the measurement 0.503 L,
which digit is the estimated digit?
a.  5  c.  3  b.  the 0 immediately to the left of the
3  d.  the 0 to the left of the decimal
point 


29.

What is the temperature of
absolute zero measured in C?
a.  –373C  b.  –273C  c.  –173C  d.  –73C 


30.

If the temperature changes by
100 K, by how much does it change in C?
