Natural Sciences And Technology Grade 6 June Common Test 2010 QP

Downloaded from hlayiso.com Province of the EASTERN CAPE EDUCATION INTERMEDIATE PHASE GRADE 6 JUNE 2010 TECHNOLOGY MARKS: 50 TIME: 1 hour This question paper consists of 9 pages.

Downloaded from hlayiso.com 2 TECHNOLOGY (JUNE 2010) INSTRUCTIONS AND INFORMATION 1. Choose any TWO Sections and answer all the questions from those two sections. 2. Sketches must be neat done in pencil

Downloaded from hlayiso.com (JUNE 2010) TECHNOLOGY 3 SECTION A: STRUCTURES QUESTION 1 Match the term in COLUMN A with the correct description in COLUMN B. Write down only the letter of the word in COLUMN A and the correct number of the description in COLUMN B next to it e.g. G – 8. COLUMN A COLUMN B A Hardness 1 A mixture of sand, cement and water. B Corrosion 2. A method used to strengthen structures. C Stable 3. A mixture of two metals to improve the properties. D Cross-braces 4. A structure that does not fall over easily. The ability of a material to withstand scratching, E Mortar (dagha) 5. wear and tear. F An alloy 6 The slow process of material being eaten away. [6] QUESTION 2 Structures can be reinforced by making it more rigid. How can you strengthen each of the following frames to make it strong and rigid? 2.1 2.1.1 Copy the diagrams below. 2.1.2 In each frame sketch the card strips you can add to make the whole frame rigid. 2.1.3 What shape is repeated in each frame? rectangular hexagon pentagon (9)

Downloaded from hlayiso.com 4 TECHNOLOGY (JUNE 2010) 2.2 Identify the different types of reinforcement used in each of the following structures: 2.2.2 2.2.1 2.2.3 (3) [12] QUESTION 3 3.1 The stability of structures is often determined and influenced by certain factors. Name any TWO factors that you can think of that determine whether a structure is stable or not. (4) 3.2 Structures can also be made stronger and more stable by adding additional support. What additional support has been used in each of the following structures? 3.2.1 3.2.3 3.2.2 (3) [7] TOTAL SECTION A: 25

Downloaded from hlayiso.com (JUNE 2010) TECHNOLOGY 5 SECTION B: SYSTEMS AND CONTROL (MECHANICAL) QUESTION 1 1.1 Choose the correct word from the list below to complete the sentences below: sun; crank; force; machine; wind; electricity 1.1.1 A mechanism makes a ___ works. 1.1.2 A mechanism is a simple system that can change one kind of ___ into another and move it from one place to another 1.1.3 A ___ is a device through which rotary motion can be applied to a shaft. 1.1.4 A mechanical system needs energy to work or to move. The energy can come from many sources including the ___. (4) 1.2 All mechanisms have an input (what is required to set the machine in motion), a process (what happens to the mechanism) and an output (what happens as a result of the input and the process). The illustration below is an example of a simple system diagram. INPUT PROCESS OUTPUT Dad puts the The washing machine Clean washing washing in washing washes it machine Copy the table below and explain the input, process and output of the mechanism. Write down the name of the mechanism and complete the system diagram next to it. INPUT PROCESS OUTPUT Riding a bicycle (6) [10]

Downloaded from hlayiso.com 6 TECHNOLOGY (JUNE 2010) QUESTION 2 2.1 Mechanisms can also change one type of motion into another. Identify the FOUR types of motions illustrated in the diagrams below: 2.1.1 2.1.2 2.1.3 2.1.4 (4) 2.2 Study the sketches below and write down the type of movement that is demonstrated by the following: 2.2.1 The knees of the rider 2.2.2 The pedal crank of the bicycle 2.2.3 The saw blade 2.2.4 The driving wheel of the electric motor (4) [8]

Downloaded from hlayiso.com (JUNE 2010) TECHNOLOGY 7 QUESTION 3 The table below identifies and explain the type of input and output motion that occur when you open a tap. Mechanism Input motion Output motion Opening a tap Rotary motion: Linear motion: Explanation: Explanation: To open or close a tap, one The rubber valve moves up has to turn the handle (to open – water flows) and down (to close – water stops flowing) 3.1 Identify and explain the input and output motion of the mechanism shown below. Write down the name of the mechanism and complete the table below. Sewing machine Input motion Output motion _________ motion _________ motion Explanation: … Explanation:… (4) 3.2 The sketch below shows a simple mechanism in use. When the person turns the handle, the bucket will be lifted or lowered. Look at the sketch and answer the following questions. 3.2.1 What is the correct name of the mechanism A labelled A? 3.2.2 What type of motion is produced at B? C 3.2.3 What type of motion is produce at C? B (3) [7] TOTAL SECTION B: 25

Downloaded from hlayiso.com 8 TECHNOLOGY (JUNE 2010) SECTION C: PROCESSING QUESTION 1 1.1 The sketch below shows different groups of processed food. Name any TWO reasons why we process food. (2) 1.2 When food is kept for a long time, bacteria and germs grow on it and it can be very dangerous and unsafe to eat. Copy the table below and sort the following food products into perishable and non-perishable foods: jelly; raw carrots; fish; milk; apples; meat; uncooked rice; yoghurt Perishable foods Non-perishable foods (8) [10] QUESTION 2 2.1 We need to eat the right kinds of food and drink plenty of water to keep our bodies healthy. Match the food group in COLUMN A with the correct description in COLUMN B. Write down only the letter of the food group in COLUMN A and the correct number of the description in COLUMN B next to it. COLUMN A COLUMN B A Minerals and vitamins 1 These give healthy tissue and bones B Fats 2 These give instant energy C Carbohydrates 3 These provide energy that can be stored D Fibre 4 These keep every part of our bodies healthy E Proteins 5 This gives bulk in the large intestine (5)

Downloaded from hlayiso.com (JUNE 2010) TECHNOLOGY 9 2.2 The table below shows the FIVE different food groups with an example of a food product under each group. Copy the table and add at least ONE more food product under each food group. Minerals Carbo- Dairy Fats and Protein and hydrates Products oils vitamins mutton corn flakes cabbage egg butter (5) [10] QUESTION 3 3.1 Long ago, people all over the world found ways to make food last longer. When there was plenty of fresh food from hunting, gathering wild plants or harvesting crops, people preserved the food for times when they could not find or grow enough food. Below is a list of preservation methods: • drying • canning • freezing • pickling • preserving with sugar Look at the pictures A to E below and identify the methods of preservation used for each item. [5] TOTAL SECTION C: 25 GRAND TOTAL: 50