Unit Conversions

Start with prefixes and measurements

The flashcards in “Physics conversion factors” introduce prefixes from pico to tera, along with their symbols and powers of ten. Start here if you want to become familiar with the notation used in metric conversions. Go through the cards, then return to any prefixes you find difficult to recall.

Next, use “Measurements” to look at a meter expressed in different metric units. The page also lists a flashcard deck covering units of length, area, volume, mass and liquid measure. These decks give you examples to work with as you move from recognizing prefixes to comparing measurements.

Practice with quizzes and a map

“Physics conversions” asks you to convert between metric units of length. Another quiz focuses on metric prefixes and their values. After studying the flashcards, use a quiz to check which conversions you can recall and which need another look.

The “Metric Conversions” mind map brings together conversion factors, unit analysis, significant figures and rounding. It also refers to multiplication and division. Use the map alongside a quiz: review the relevant part of the map, attempt the questions, and return to the cards or map when you want to check your understanding.

Use the topic within Measurement and Units

Unit Conversions is a section of Measurement and Units in Physics. The resources here offer different ways to work through that section, from recalling prefixes to practicing conversions. A flowchart on the page shows conversions between kilograms and grams, as well as volume and density conversions.

For a change of format, start with the flowchart and follow the direction of each conversion. Then choose a deck or quiz that lets you practice the units you have just looked at. Pick a resource and work through it at your own pace.