Module 2

Question 1

What are proportional calculations?

Answer 1

Calculations that involve using a known ratio to determine the strength or volume of a similar ratio, where one of the values (strength or volume) is unknown

Question 2

What is the definition of a ratio?

Answer 2

Relative magnitude of two like quantities

Question 3

What is proportion?

Answer 3

expression of the equality of two ratios
ex) 1:4 is the same as 4:16

Question 4

How are proportions solved?

Answer 4

By cross multiplying (both sides must equal each other)

Question 5

What does the accuracy of a proportion depend on?

Answer 5

Identical unites being used in each of the ratios (same units on both sides)

Question 6

What is dimensional analysis?

Answer 6

a problem-solving method that applies needed equivalents and unit-conversion factors to ensure that the terms of an equation have the same dimensions

Question 7

What is the basic equation for dimensional analysis?

Answer 7

Given quantities and units X equivalents and unit conversion factors = answer in desired units

Question 8

Reducing or Enlarging factor equation

Answer 8

Red/enlarging factor = Desired qty / qty given (if factor is less than 1, then reducing; if greater than 1, then enlarging)