Question

The strength of a force is usually expressed by its_____ and its SI unit is_____.

• A. altitude, metre
• B. duration, second
• C. direction , newton
• D. magnitude, newton

Answer 1

The correct option is D magnitude, newton

The strength of a force depicts how strong that force is. To express the amount of force applied its magnitude needs to be taken into account.
Hence, magnitude expresses the strength of a force and newton is its SI unit.