Fast review mode: answers are shown by default so you can skim quickly. Hide them if you want to self-test.
Any characteristic that can be measured, such as an object's density, colour, mass, volume, length, malleability, melting point, hardness, odour, temperature, and more, are considered properties of matter.
Mass vs. Weight: People often confuse the mass and weight of matter. Mass is how much matter an object contains. It is measured with a balance. The SI unit for mass is the kilogram (kg). Weight is a measure of the force of gravity pulling on an object. It is measured with a scale. The SI unit for weight is the Newton (N). The common English unit for weight is the pound (lb). This distinction between mass and weight holds even though some modern digital scales convert weight to mass and give the mass of the object at Earth gravity. An object with more mass is pulled by gravity with greater force, so mass and weight are closely related. However, the weight of an object can change if the force of gravity changes, even while the mass of the object remains constant.
Join 4M+ learners. Unlock unlimited quizzes, wrong-answer tracking, flashcards + reminders, study guides, and 1-on-1 challenges.