Proportionality Relations Worksheet-MTSU.

Workbook #1 – Module #1 PHYS2050 Problem 1: Proportionality relations. John and Linda are arguing about the definition of density. John says the density of an object is proportional to its mass. Linda says the object’s mass is proportional to its density and to its volume. Which one, if either, is correct? A. They are both wrong. B. John is correct, but Linda is wrong. C. John is wrong, but Linda is correct. D. They are both correct. E. They are free to redefine density as they wish. First, answer the following questions that should help you find the right answer to the main question below: a) What is the formula for the density? b) What does it mean that two quantities are proportional to each other? c) Can two quantities be inversely proportional? What does it mean? d) Can you think of any physical or mathematical relation in which two quantities are proportional to each other? 1 Workbook #1 – Module #1 PHYS2050 Problem 2: Estimates: Order of magnitude. How many aluminum soft drink cans are thrown away or recycled each year by US consumers? Before you answer that question list all the assumptions that you make to estimate the number of aluminum cans: Provide your answer below: 2