Final answer:
The statement that a lighter instrument will always cause less skeletal trauma than a heavier instrument is false.
Step-by-step explanation:
The statement that a lighter instrument will always cause less skeletal trauma than a heavier instrument when given the same amount of energy is false. The amount of kinetic energy of an object is determined by both its mass and its velocity. While a lighter instrument may have less mass, it can still cause significant skeletal trauma if it has a higher velocity. Therefore, it is not solely the mass of the instrument that determines the amount of skeletal trauma. For example, imagine a scenario where a heavy object and a lighter object are both thrown with the same amount of energy. The lighter object may have less mass, but if it is thrown at a higher velocity, it can still cause more skeletal trauma compared to the heavier object.