Unit Conversion Concepts and Techniques

This video tutorial covers the concept of conversions, also known as dimensional analysis, which is crucial for scientific calculations. It explains the setup for conversion problems, including starting amounts, equivalency statements, and end amounts. The tutorial provides examples of metric and currency conversions, and progresses to more complex problems, such as converting speed from meters per second to miles per hour. The video emphasizes the importance of understanding equivalency statements and offers practical examples to reinforce learning.

What is another term often used for conversions in science?

• Dimensional Analysis

• Metric System

• Stoichiometry

• Equivalency Statement

In a conversion problem, what is the term for the amount you start with?

• Equivalency Statement

• End Amount

• Starting Amount

• Conversion Factor

How many centimeters are there in one meter?

• 1000

• 100

• 10

• 10000

What must the equivalency statement in a conversion problem always equal?

• Zero

• One

• The end amount

• The starting amount

Which of the following is a correct conversion factor for kilograms to pounds?

• 1 kilogram = 2.2 pounds

• 1 kilogram = 1.5 pounds

• 1 kilogram = 3.0 pounds

• 1 kilogram = 0.5 pounds

How many feet are in 56 meters, according to the conversion factor provided?

• 100 feet

• 200 feet

• 150 feet

• 183.7 feet

What is the mass of a spork if it weighs 25 grams, converted to kilograms?

• 0.0025 kg

• 0.025 kg

• 2.5 kg

• 0.25 kg

If a car is moving at 54 meters per second, what is its speed in miles per hour?

• 100 mph

• 120.8 mph

• 150 mph

• 180 mph

How many seconds are there in one hour?

• 7200

• 3600

• 1800

• 2400

What is the first step in setting up a conversion problem involving two different sets of units?

• Write the final answer

• Set up two sets of parentheses

• Multiply by the conversion factor

• Cancel out the units