The Basics Flashcards
How many types of relationships are there in ultrasound?
5
What are the 5 relationships in ultrasound?
- Unrelated
- Directly related
- Related
- Inversely related
- Reciprocal
What is another name for Directly related?
Directly Proportional
What is another name for Inversely related?
Inversely Proportional
What is another name for Related?
Proportional
What is an Unrelated relationship?
when 2 things have nothing to do with each other (no association)
What is an example of an Unrelated relationship?
hair color and shoe size
What is a Directly related (Directly Proportional) relationship?
when 2 things have a direct connection and affect to each other
What happens in a Directly related (Directly Proportional) relationship?
one thing increases causing the other thing to increase (↑,↑)
or
one thing decreases causing the other thing to decrease (↓,↓)
What is an example of a Directly related (Directly Proportional) relationship?
the size of clothes and a person’s weight
How is the size of clothes and a person’s weight Directly related (Directly Proportional)?
because as a person’s weight increases, so does the size of their clothes (↑,↑)
or
as a person’s weight decreases, so does the size of their clothes (↓,↓)
What is an example of a Directly related (Directly Proportional) relationship?
a person’s skill level and practice
How is a person’s skill level and practice Directly related (Directly Proportional)?
because the more practice a person gets, the better their skills get (↑,↑)
or
the less practice a person gets, the worse their skills get (↓,↓)
What is a Related (Proportional) relationship?
when 2 things are related or have some kind of connection that is not direct
What is an example of a Related (Proportional) relationship?
Santa and Christmas
How are Santa and Christmas Related (Proportional)?
because when people think of Christmas they also think of Santa
What is an example of a Related (Proportional) relationship?
studying and test score
How are studying and test score Related (Proportional)?
because when people think of studying they also think of a test score
What is an Inversely related (Inversely Proportional) relationship?
when 2 things have a connection to each other and one thing affects the other in an opposite way
What happens in an Inversely related (Inversely Proportional) relationship?
one thing increases causing the other thing to decrease (↑,↓)
or
one thing decreases causing the other thing to increase (↓,↑)
What is an example of an Inversely related (Inversely Proportional) relationship?
school grades and party time
How are school grades and party time Inversely related (Inversely Proportional)?
because the more time someone spends partying, the less time they spend studying causing their grades to lower (↑,↓)
or
the less time someone spends partying, the more time they spend studying causing their grades to go up (↓,↑)
What is an example of an Inversely related (Inversely Proportional) relationship?
clothes and temperature
How are clothes and temperature Inversely related (Inversely Proportional)?
because as the temperature increases (gets hot), the less clothes a person wears (↑,↓)
or
as the temperature decreases (gets cold), the more clothes a person wears (↓,↑)
What is a Reciprocal relationship?
when 2 things or numbers are a reciprocal/opposite of each other that equals to the number 1 when they are multiplied together
What is another definition of a Reciprocal relationship?
a type of Inversely related (Inversely Proportional) relationship
What happens in an Inversely related (Inversely Proportional) relationship?
one thing increases causing the other thing to decrease (↑,↓)
or
one thing decreases causing the other thing to increase (↓,↑)
What is another thing that happens in a Reciprocal relationship?
a number changes into the opposite number in the form of a fraction that equals 1 when multiplied together with the original number
What is a number example of a Reciprocal relationship?
2
How can the number 2 become a reciprocal number?
because the number 2 in a fraction form is (2/1), the opposite of that fraction is (1/2), when 2/1 and 1/2 are multiplied it equals 1; 1/2 is the reciprocal of 2
What is a number example of a Reciprocal relationship?
10
How can the number 10 become a reciprocal number?
because the number 10 in a fraction form is (10/1), the opposite of that fraction is (1/10); when 10/1 and 1/10 are multiplied it equals 1; 1/10 is the reciprocal of 10
What is an example of a Reciprocal relationship in an ultrasound scenario?
period and frequency
How are Period and Frequency a Reciprocal?
because when the Period increases, the Frequency decreases (↑,↓)
or
when the Period decreases, the Frequency increases (↓,↑)
What kind of graph does a Directly related (Directly Proportional) relationship produce?
a graph where the 2 variables have a direct relationship
How does a Directly related (Directly Proportional) graph look like?
the horizontal line (x-axis line) goes side to side
and
the vertical line (y-axis line) goes up and down
(y-axis)
I
I
I
I
I———————(x-axis)
What happens in a Directly related (Directly Proportional) graph?
when the x-axis increases, the y-axis increases
or
when the x-axis decreases, the y-axis decreases
What is an example of a Directly related (Directly Proportional) graph?
(y-axis)
4 I /
3 I /
2 I /
1 I /
–I—————(x-axis)
2 4 6 8
y-axis = height in feet
x-axis = age in years
the older someone gets (x-axis) the taller they get (y-axis)
vice versa
the younger someone is (x-axis) the shorter they are (y-axis)
What kind of graph does an Inversely related (Inversely Proportional) relationship produce?
a graph where the 2 variables have an inverse relationship
How does an Inversely related (Inversely Proportional) graph look like?
the horizontal line (x-axis line) goes side to side
and
the vertical line (y-axis) goes up and down
(y-axis)
I
I
I
I
I———————(x-axis)
