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Question 1.2   If you put something in a container, how would you tell if it was a liquid? (1)

A binding constraint means that the constraint is exactly satisfied, and its left-hand side (LHS) does not equal its right-hand side (RHS).

Question 4.3.3   What is the scientific name for rain, snow and other forms of water that fall from clouds? [ans1] (1)

Question 2.1.3   What is it used for as a solid? (1)

(Part SA) Each question is independent of the other questions. Consider an LP maximization problem, in which X and Y denote the number of units of products X and Y to produce, respectively. The Excel Sensitivity Report for this problem is shown below. Calculate and explain what happens to the optimal solution for each of the following situations.

QUESTION 3 Answer the following questions regarding heating and cooling:

(Part SA) Suppose that 50 units of Resource 4 were found to be unusable, how would the solution change?

(Part SP) Refer to the above figure, this model has [a] decision variables. 

Question 2.1.1   Joseph Priestley invented fizzy drinks by adding a gas he called ‘heavy air’. What is the name of the gas now? [ans1] (1)

Question 1.4.1 In solids, liquids and gases the particles behave in different ways. Describe how the particles in solids behave. (1)