Which unit is used to measure weight in the US customary system?

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Multiple Choice

Which unit is used to measure weight in the US customary system?

Explanation:
Weight is a force, not a mass. In US customary units, that force is expressed in pound-force (lbf). The pound-force is the amount of force gravity exerts on a mass of one pound-mass under standard Earth gravity, so weight is measured in lbf. The other options come from different quantities or systems: Newton is the SI unit of force, Joule is a unit of energy, and Pascal is a unit of pressure. In practice, you’ll see mass labeled in pounds-mass (lbm) or slugs, while weight is given in pounds-force (lbf). For example, near Earth’s surface a mass of about 1 lbm corresponds to roughly 1 lbf of weight.

Weight is a force, not a mass. In US customary units, that force is expressed in pound-force (lbf). The pound-force is the amount of force gravity exerts on a mass of one pound-mass under standard Earth gravity, so weight is measured in lbf. The other options come from different quantities or systems: Newton is the SI unit of force, Joule is a unit of energy, and Pascal is a unit of pressure. In practice, you’ll see mass labeled in pounds-mass (lbm) or slugs, while weight is given in pounds-force (lbf). For example, near Earth’s surface a mass of about 1 lbm corresponds to roughly 1 lbf of weight.

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