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This assessment measures your progress toward attaining the three overall course learning outcomes stated  in the unit profile.  

  • Due date: Thursday, 10th August, 2017 at 1.00pm AEST in Week 5
  • Total marks: 40
  • Weighting towards final course grade: 15 %  


Topics related to unit content from Weeks 1 – 3 are assessed in Written Assessment 1.  Refer to the posted instructions in the 'Assessment' section regarding the format of your written  assignments.  

Your Written Assessment 1 has two parts: 

Part 1 – worth 10 marks 

  • A glossary of all of the keywords you have used in your answers to Part 2 questions. Each keyword must be defined in your glossary. Include any symbols and unit of measure associated with the keyword provided. 
  • Once you have defined a keyword in your glossary, you can use that term throughout your  responses to the questions in Part 2 without the need to define the term again. 
  • If you have used any equation(s) or proportionality statement(s) to answer Part 2, include them in your  glossary as well.  

Part 2 – worth 30 marks  

  • There are 3 main questions to Part 2.  
  • Question 1 has two (2) TRUE/FALSE with justification type sub-questions.  
  • Question 2 is a scenario based question with one main question.  
  • Question 3 is a scenario-based question with three (3) sub-questions. Follow the instructions in  the posted document 'A Structured Approach to Solving Word Problems' when attempting  Question 3B and 3C in Part 2.  
  • You are required to use terminology correctly. Ensure that you have included the keywords, symbols,  proportionality statements and equations in the Glossary List in Part 1. 
  • For ALL questions (both word and number type), explain your answer.  
  • Each explanation must include identification of the underlying relevant physics concepts,  principles and facts, explanation of how those concepts and principles are connected to the  information provided in the question and a logical step-by-step argument to answering the  question asked. 
  • For any of your workings of calculations, include an explanation of each formula or mathematical  relationship used and show the logical progression to the solution (Do not skip steps). You must use correct units of measure for values that you use in any calculations.  Your final answers to any of the numerical questions must be expressed with the correct number  of significant digits and with correct units.

MEDI11002 Physics for Health Sciences Term 2, 2017 Written Assessment 1 P a g e |

Part 2 Question 1: (2 x 5 marks) 

For each of the statements below, indicate whether the statement is true or false and explain your reasoning. 

  1. The wheelchair that a patient is being transported on is travelling at constant acceleration (a). This is  represented by the equation a = Δv/t where Δv is change in velocity and t is time elapsed. From the  equation, it can be deduced that constant acceleration (a) is the dependent variable. 
  2. When a small box and a big box made of the same material are pushed with the same force, the small box  will move faster. 

Part 2 Question 2: (5 marks) 

Your colleague decides to make three same sized holes that are 2 cm apart and slightly staggered from each  other on a tin can.

The can is placed in the sink and filled with water (The tap is left running to compensate for the water leaving  the can via the 3 holes). Your colleague notices that the water jetted furthest from Hole C and the least from  hole A. Explain why this observation was made. 

Part 2 Question 3: (15 marks) 

A 53.7 kg patient is transported to the out-patient department on an emergency trolley that is about 80. cm high. The combined mass of the patient and the trolley is 65 kg. The patient is placed on a saline drip. The  saline is enclosed in a transparent plastic bag. To enable appropriate testing to be done, the patient is lifted  from the trolley and carried to a patient couch. The patient couch is 100. cm tall and is located 120 cm from  the emergency trolley.  

    1. Once the tests are completed, the patient is returned to the emergency trolley. Explain the energy  conversions that took place as the patient is lifted from the emergency trolley to the patient couch and  back to the emergency trolley. (5 marks) 
    2. If the patient's mass is 50 kg, determine the weight of the trolley. (Follow the instructions in the posted  document 'A Structured Approach to Solving Word Problems' when attempting this question). (5 marks)  
    3. As the patient was being transported back to the trolley, the drip stand and the saline bag accidentally hit  the wall with a force of 5N. Explain how the 5N force will impact on the pressure within the saline bag.  (Apply the relevant instructions from the posted document 'A Structured Approach to Solving Word  Problems' when attempting this question). (5 marks)



This work is the synthesis of understanding of the basic principles of physics along with their application in day to day activities as well as their application in health sciences in the day to day activities. It is an attempt to produce things in a simple manner while highlighting the basic principles of physics involved in it. In this work, along with the answers to the questions, conformity to the standard format as prescribed by the university has been maintained. In writing, the answers reference from many works has been taken, the details of which are provided on the last page.



Independent variable: The variable which is deliberately altered by the person carrying on the experiment.

Dependent variable: The outcome variable is measured every time when the independent variable is altered.

Inertia: A tendency of the body to remain in its state of rest or uniform motion until an external force act on it.

Torricelli’s principle: Torricelli’s law says that water in the container will escape through a (tiny) hole at the bottom with the exact speed that it would have attained, falling from the same level to the level of the tiny hole.

Law of conservation of energy: This principle states that the energy of interacting particles or bodies in any closed system remains uniform. It gets converted from one form to another, but it is neither created nor destroyed.


S.I unit of mass- Kg(Kilogram)

S.I unit of Force- N(Newton)

S.I unit of velocity- m/s

Acceleration due to gravity, i.e. 'g' = 9.8m/s

The weight of a body = mg, where 'm’ is the mass of a body, and ‘g’ is the acceleration due to gravity.

Kinetic energy: The energy possessed by a body by virtue of its being in motion.

Potential energy: It is the energy possessed by a body by virtue of its position.



A. It is false that the constant acceleration (a) is the dependent variable. Here the acceleration is constant, and the velocity is adjusted in such a manner that its change with time produces a constant acceleration. Rather it is the velocity here that is being altered in order to maintain the constant acceleration (Leatham, 2012).

B. It is true that when a small box and a big box made of the same material are pushed with the same force, the small box will move faster. It is due to the property of inertia. The more massive object will offer greater resistance as compared to the lighter object. Here both the boxes are of the same material. Hence their density is the same, and therefore the smaller box is a lighter one, and hence it would move faster (Inertia, 2016).

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