What is the standard unit for measuring weight?

What is the standard unit for measuring weight?

• A. Kilograms (kg)
• B. Pounds (lb)
• C. Grams (g)
• D. Newtons (N)

Answer: (D)

Weight is a force—the pull of gravity on a mass. In the SI system, forces are measured in newtons. The relationship is W = m × g, where m is mass and g is the acceleration due to gravity (about 9.81 m/s^2 on Earth). Because weight is a force, its standard unit is the newton. Kilograms and grams measure mass, not weight, and pounds is an imperial unit often used for force but not the SI standard. For example, a 70 kg mass has a weight of about 70 × 9.81 ≈ 686 N on Earth.

Weight is a force—the pull of gravity on a mass. In the SI system, forces are measured in newtons. The relationship is W = m × g, where m is mass and g is the acceleration due to gravity (about 9.81 m/s^2 on Earth). Because weight is a force, its standard unit is the newton. Kilograms and grams measure mass, not weight, and pounds is an imperial unit often used for force but not the SI standard. For example, a 70 kg mass has a weight of about 70 × 9.81 ≈ 686 N on Earth.