Struggling with force problems where mass or acceleration are unknown, in other words when f doesn’t equal m x a (force = mass x acceleration)? This Newton’s Second Law of Motion worksheet gives students targeted practice solving 24 worded problems using formulas beyond F = ma, let's explore a = F/m and m = F/a too! Perfect for reinforcing the relationships between force, mass, and acceleration, helping students build confidence and automaticity with variable substitution in physics. Perfect f