Multiple choice general knowledge science & technology How many Dynes are there in one gram weight? 375 900 981 250 Reveal answer Fill a bubble to check yourself C Correct answer Explanation One gram weight (gram-force) equals 981 dynes because 1 gram-force = 1 gram × 9.81 m/s^2 (standard gravity) = 981 g·cm/s^2 = 981 dynes in the CGS system.