Unit Conversion Techniques and Concepts

This video tutorial covers the conversion between customary and metric units. It begins with an introduction to the concept and provides a table of approximate equivalences. The instructor demonstrates how to solve conversion problems using proportions and a calculator, with examples including gallons to liters, miles to kilometers, and kilograms to pounds. The video concludes with practice problems for students to try on their own.

What is the purpose of rounding when converting between customary and metric units?

• To ensure exact conversions

• To make calculations easier

• To avoid using calculators

• To simplify the conversion process

What is the first step in setting up a conversion problem?

• Guess the answer

• Use a random conversion factor

• Identify what you know and what you need to find

• Ask someone else

What is the approximate equivalent of one gallon in liters?

• 2.54 liters

• 3.79 liters

• 4.22 liters

• 5.00 liters

How do you set up a proportion to convert gallons to liters?

• Use a direct multiplication

• Set up a ratio and cross multiply

• Add gallons and liters

• Divide gallons by liters

What is the approximate equivalent of five gallons in liters?

• 15 liters

• 25 liters

• 20 liters

• 18.95 liters

What is the approximate equivalent of one mile in kilometers?

• 3.00 kilometers

• 1.00 kilometer

• 2.00 kilometers

• 1.61 kilometers

How do you find the number of kilometers in seven miles?

• Multiply by 1.61

• Divide by 1.61

• Add 1.61

• Subtract 1.61

What is the approximate equivalent of 0.45 kilograms in pounds?

• 1 pound

• 2 pounds

• 0.5 pounds

• 1.5 pounds

How do you solve for pounds when given kilograms?

• Add 0.45

• Subtract 0.45

• Divide by 0.45

• Multiply by 0.45

What is the approximate equivalent of 45 kilograms in pounds?

• 100 pounds

• 120 pounds

• 90 pounds

• 110 pounds