UNE PHYS 1010 Midterm Review
Study online at https://quizlet.com/_ttw5oj
1. What determines the validity of a model? Experimental proof, even un-
der limited situations
2. Which is true of significant figures? When multiplying or dividing
measured values, final
answer cannot contain
more signif-icant figures
than the least precise
value
3. Match the item with the appropriate order of Grain of Sand: 10(-3) m
mag-nitude of length Wavelength of visible
light: 10(-6) m
Diameter of Earth: 10(7)m
Greatest ocean depth: 10(4)
m
Length of a football field:
10(2) m
4. Which option best describes a model? A model is a representation of
something that is often too
dif-ficult to display directly
5. Why are models particularly useful in Relativity Quantum mechanical
or Quantum mechanics? objects are too small to be
observed with a common
microscope
6. Under what circumstances is classical physics a good Objects must be traveling at
approximation to modern physics? con-cepts in this
course
7. We will be using models to represent physical
,out <1% of the speed of light True
, UNE PHYS 1010 Midterm Review
Study online at
8 What is the area of a circle 3.102 cm in diameter? 7.557
. cm^2
If a marathon runner averages 9.50 mi/h how many 165 min
9 minutes does it take him or her to run a 26.22 mi marathon?
.
10. A person's blood systolic pressure is measured to be 1.67
% 120 +/- mmHg. What is its percent uncertainty?
11. Assuming the same percentage uncertainty, what is 1.34
mmHg the uncertainty in a blood pressure measurement of
80 mm Hg?
12. The sides of a small rectangular box are 11 +/- cm>3
measured to be 1.80 ± 0.01 cm long, 2.05 ± 0.02
cm long, and
3.10 ± 0.01 cm long. Calculate the box's volume
and approximate uncertainty in cubic centimeters.
10^11
13. Calculate the approximate number of atoms in a
bacterium. Assume that the average mass of an
atom in the bacterium is ten times the mass of a
hydrogen atom. (Hint: The mass of a hydrogen
atom is on the order of 10^-27 kg and the mass of
a bac-terium is on the order of 10^-15 kg.)
14. The speed of sound in water is measured to be 1485 3322
mph m/s. What is this in mph?
15. A generation is about one-third of a lifetime. Approx-
100 imately how many generations have passed since
the year 0 AD? (Hint: use Table 1.3 in the text to
estimate the lifespan of a human)
Study online at https://quizlet.com/_ttw5oj
1. What determines the validity of a model? Experimental proof, even un-
der limited situations
2. Which is true of significant figures? When multiplying or dividing
measured values, final
answer cannot contain
more signif-icant figures
than the least precise
value
3. Match the item with the appropriate order of Grain of Sand: 10(-3) m
mag-nitude of length Wavelength of visible
light: 10(-6) m
Diameter of Earth: 10(7)m
Greatest ocean depth: 10(4)
m
Length of a football field:
10(2) m
4. Which option best describes a model? A model is a representation of
something that is often too
dif-ficult to display directly
5. Why are models particularly useful in Relativity Quantum mechanical
or Quantum mechanics? objects are too small to be
observed with a common
microscope
6. Under what circumstances is classical physics a good Objects must be traveling at
approximation to modern physics? con-cepts in this
course
7. We will be using models to represent physical
,out <1% of the speed of light True
, UNE PHYS 1010 Midterm Review
Study online at
8 What is the area of a circle 3.102 cm in diameter? 7.557
. cm^2
If a marathon runner averages 9.50 mi/h how many 165 min
9 minutes does it take him or her to run a 26.22 mi marathon?
.
10. A person's blood systolic pressure is measured to be 1.67
% 120 +/- mmHg. What is its percent uncertainty?
11. Assuming the same percentage uncertainty, what is 1.34
mmHg the uncertainty in a blood pressure measurement of
80 mm Hg?
12. The sides of a small rectangular box are 11 +/- cm>3
measured to be 1.80 ± 0.01 cm long, 2.05 ± 0.02
cm long, and
3.10 ± 0.01 cm long. Calculate the box's volume
and approximate uncertainty in cubic centimeters.
10^11
13. Calculate the approximate number of atoms in a
bacterium. Assume that the average mass of an
atom in the bacterium is ten times the mass of a
hydrogen atom. (Hint: The mass of a hydrogen
atom is on the order of 10^-27 kg and the mass of
a bac-terium is on the order of 10^-15 kg.)
14. The speed of sound in water is measured to be 1485 3322
mph m/s. What is this in mph?
15. A generation is about one-third of a lifetime. Approx-
100 imately how many generations have passed since
the year 0 AD? (Hint: use Table 1.3 in the text to
estimate the lifespan of a human)
