Multiple choice general knowledge science & technology How many Dynes are there in one gram weight? 900 375 981 250 Reveal answer Fill a bubble to check yourself C Correct answer Explanation 1 gram-force (weight of 1 gram under standard gravity) equals approximately 981 dynes. This is derived from the conversion: 1 dyne = 1 g·cm/s², and g ≈ 981 cm/s², so 1 gram-force = 981 dynes.