FTCE Pre-K Prekindergarten PK-3 Practice Exam 2025 - Free FTCE PK-3 Practice Questions and Study Guide

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What is the difference between mass and weight?

Mass is volume; weight is total density.

Mass is the amount of matter; weight is the pull of gravity on that matter.

The distinction between mass and weight is fundamental in physics. Mass refers to the amount of matter in an object, which remains constant regardless of the object's location. It is a scalar quantity measured in kilograms or grams. On the other hand, weight is the force exerted on that mass due to gravity. It depends on both the mass of the object and the gravitational pull acting on it, typically measured in newtons or pounds. Because weight is influenced by gravitational forces, it can vary depending on where an object is located—for example, an object will weigh less on the Moon than on Earth due to the Moon's weaker gravitational pull. This understanding is crucial in various scientific applications, including physics and engineering.

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Mass changes with location; weight does not.

Mass measures temperature; weight measures pressure.

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