Module 1 Unit 2 Assignment B

# Module 1 Unit 2 Assignment B - MODULE 1 UNIT 2 Assignment...

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MODULE 1 UNIT 2 Assignment Part B 1. Why do we use measures of mass rather than of weight in this course? We use measures of mass rather than weight in this course because weight changes depending on the level of altitude it is being weighed at. Things weigh less at a higher altitude than they do at a lower altitude and mass does not change. 3 marks 2. In each of the following situations, describe and explain what happens to the mass and weight of a sample of water: ( 3 marks each) a) A glass of water is left on a table over many days. – Both the mass and weight of the water would decrease as evaporation occurs and the water begins to disappear. b) Water, in a hermetically sealed container, is transported from the Earth’s surface to the moon’s surface. – The mass would remain the same since the mass of an object remains the same anywhere in the universe, given that the amount of matter stays the same, which it would since it is sealed and the water would not evaporate. It would weigh significantly less on the moon than on Earth because there is less gravitational force on the moon and weight is the measurement of the gravitational force on an object. 6 marks 3. For each of the formulas given below, state the name of the represented elements and the number of atoms of each element. (2 marks each)

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