What is the unit of weight?

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Prepare for the Year 10 Force and Motion Test. Utilize flashcards and multiple-choice questions with clear hints and explanations to ensure success. Equip yourself for excellence on your exam!

Multiple Choice

What is the unit of weight?

Explanation:
Weight is a force—the pull of gravity on a mass. In SI units, this force is measured in newtons. A newton is defined as the force that gives a one-kilogram mass an acceleration of one meter per second squared, so weight equals mass times gravitational acceleration (W = m g). On Earth, g is about 9.8 m/s², so weight depends on both how heavy something is (mass) and the strength of gravity. Kilograms measure mass, not the force of gravity. Meters per second is speed, and joules measure energy or work. So the unit of weight is the newton.

Weight is a force—the pull of gravity on a mass. In SI units, this force is measured in newtons. A newton is defined as the force that gives a one-kilogram mass an acceleration of one meter per second squared, so weight equals mass times gravitational acceleration (W = m g). On Earth, g is about 9.8 m/s², so weight depends on both how heavy something is (mass) and the strength of gravity. Kilograms measure mass, not the force of gravity. Meters per second is speed, and joules measure energy or work. So the unit of weight is the newton.

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