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Vascular I & Physics I > Ch 1-2 Physics > Flashcards

Ch 1-2 Physics Flashcards

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1
Q

X axis that runs side to side or left to right

A

horizontal

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2
Q

y axis that runs up and down or bottom to top

A

vertical

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3
Q

when two items have a relationship with one another but not a specific relationship it is called

A

related or proportional

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4
Q

When two items are not associated it is called

A

unrelated

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5
Q

When one item increases as another item decreases it is considered

A

inversely related or inversely proportional

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6
Q

Describes two items that are associated and as one increases, the other also increases

A

directly related or directly proportional

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7
Q

Scores on the ultrasound board exams are _____ related to studying time

A

directly

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8
Q

Weight is ______ related to a sonographer’s time spent exercising

A

inversely

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9
Q

The color of the sky and the size of a person’s pants are

A

unrelated

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10
Q

Special forms of inverse relationships

A

reciprocals

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11
Q

When two numbers with a _______ relationship are multiplied together, the result is one

A

reciprocal

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12
Q

What is the reciprocal of 1000

A

1/1000 or 0.001

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13
Q

What is the reciprocal of 1/10?

A

10

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14
Q

What is the reciprocal of 7

A

1/7

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15
Q

All numerical values should have corresponding

A

units

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16
Q

Typical units for Length

A

cm, m (singular)

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17
Q

Typical units for Area

A

cm^2, ft^2 (squared)

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18
Q

Typical units for volume

A

cm^3, ft^3 (cubed)

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19
Q

What is not a unit

A

percent

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20
Q

Increase by a factor of 3 means

A

multiply by 3

21
Q

Decreases by a factor of 6 means

A

divide by 6

22
Q

A sack contains 4 pounds of sugar. The contents of the sack are increased by a factor of 5. How much sugar is in the bag

A

20lbs

23
Q

A forest has 25 trees. The size of the forest is decreased by a factor of 5. How many trees remain

A

5 trees

24
Q

Short way to represent very large or very small numbers

A

scientific notation

25
Q

A number in scientific notation with a negative exponent has a value that is

A

less than 1

26
Q

A number in scientific notation with a positive exponent has a value that is

A

greater than 10

27
Q

A number with an exponent of zero has a value

A

between 1 & 10

28
Q

Complimentary metric units for billions and billionths

A

gigo nano

29
Q

complimentary metric units for thousands and thousandths

A

kilo milli

30
Q

complimentary metric units for millions and millionths

A

mega micro

31
Q

How many nanoseconds are in 7 seconds

A

.000000007 seconds

32
Q 
List the metric units in decreasing order
Nano
Centi
Giga
Kilo
Hector
Micro
A 
Giga
Kilo
Hector
Centi
Micro
Nano
33
Q

Sound is a

A

mechanical and longitudinal wave

34
Q

Effects of the medium upon the sound wave

A

acoustic propagation properties

35
Q

What are we talking about when we talk about the media and medium

A

Biological tissue,what the waves pass through

36
Q

Effects of the sound wave upon the biological tissue through which it passes

A

biological

37
Q

List the 3 acoustic variables

A

pressure
density
distance

38
Q

Used to distinguish between sound waves and other types of waves

A

acoustic variables

39
Q

What wave do particles move in the same direction that the wave propagates

A

longitudinal

40
Q

What wave do particles move in a direction that is perpendicular to the direction that the wave propagates

A

transverse

41
Q

Sound is a

A

longitudinal wave

42
Q

Sound is comprised of ______ and ______ or areas that increase in pressure or density and decreases in pressure or density

A

compression and rarefaction

43
Q

What are a pair of waves considered when their peaks occur at different times, and so do their troughs

A

out-of-phase

44
Q

What are a pair of waves considered when their peaks occur at the same time and end at the same time

A

In-phase

45
Q

Occurs when a pair of in-phase waves results in the formation of a single wave with a larger amplitude than either of them on their own

A

constructive interference

46
Q

Occurs when a pair of out-of-phase waves result in the formation of a single wave with a smaller amplitude than wither original waves

A

destructive interference

47
Q

What do waves transfer from one location to another

A

energy

48
Q

Waves of different frequencies will create eaves with _____ and ______ interference

A

constructive and destructive

49
Q

Period and frequency have

A

a reciprocal relationship

Vascular I & Physics I (19 decks)

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