ULTRASOUND PHYSICS EXAM 2025
QUESTIONS AND ANSWERS
Is cholesterol level and longevity
a. inversely related
b. directly related
c. unrelated - ANS a. inversely related. cholesterol increases, lifespan decreases.
Is smoking and the likelihood of cardiovascular disease
a. inversely related
b. directly related
c. unrelated - ANS b. directly related
Are years employed and days of vacation earned per year
a. inversely related
b. directly related
c. unrelated - ANS b. directly related
Is IQ and shoe size
a. inversely related
b. directly related
c. unrelated - ANS c. unrelated
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,Is caloric intake and weight
a. inversely related
b. directly related
c. unrelated - ANS b. directly related. weight increase when calories increase
Is hours spent exercising and weight
a. inversely related
b. directly related
c. unrelated - ANS a. inversely related. exercise increases, weight decreases
Is alcohol intake and sobriety
a. inversely related
b. directly related
c. unrelated - ANS a. inversely related
How are the size of a tree and its age related?
a. inversely related
b. directly related
c. unrelated - ANS b. directly related
How are the height of a person and the color of his automobile related?
a. inversely related
b. directly related
c. unrelated - ANS c. unrelated
How is the age of a loaf of bread related to its freshness?
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,a. inversely related
b. directly related
c. unrelated - ANS a. inversely related. age increases, freshness decreases
List these metric terms in INCREASING order:
A. mega
B. micro
C. milli
D. hecto
E. deca
F. deci - ANS B. micro, C. milli, F. deci, E. deca, D. hecto, A. mega
how many milliliters are in 8 liters.
A. 1/8
B. 8
c. 800
d. 8000 - ANS d. 8000. milli means thousandth, so multiply 1000 by 8.
how many centimeters are in 3 meters?
a. 1/300
b. 1/3
c. 3
d. 300 - ANS d. 300. centi means hundredth, so multiply 3 by 100
how many kilometers are in 3000 meters?
a. 1/300
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, b. 1/3
c. 3
d. 300 - ANS c. 3. kilo means thousand, so divide 3000 by 1000.
what is the reciprocal of 100?
a. .1
b. 100
c. .2
d. .01 - ANS d. .01. 1/100= .01
how many hertz is 3 MHz?
a. 3,000,000
b. 3000
c. 333
d. 0.003 - ANS 3,000,000. mega means billion, 3x1,000,000 = 3,000,000
how many milliliters are contained in a jar filled with 5 liters of fluid?
a. 5
b. 5000
c. 500
d. .005 - ANS a. 5. milli means thousanth.
how many liters are contained in 80 ml of fluid?
a. 8
b. 80
c. .008
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