INSTRUCTIONS:
INSTRUCTIONS:
Type the full vocabulary term (no abbreviations) that best matches the given definition in quotes. The first letter is given as a hint.
noun (concept)
Question 1 of 21
a common measurement, of the frequency of screen refreshes
Your answer field is focused automatically. Type the spelling and press Enter to submit, or press Tab to move to the activity actions.
DEMO MODE:
DEMO MODE:
You're trying this activity as a guest! Sign in or Create a free account to save your scores and earn certificates.